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• How to Use Google Chrome
• How to Assume the Brace Position
• How to Differentiate Polynomials

How to Use Google Chrome Posted: 10 Oct 2021 01:00 AM PDT This wikiHow teaches you how to get started with the Google Chrome web browser on a computer, phone, or tablet. Once you nail the basics, you can move on to adding extensions, personalizing your experience, and using Chrome on your TV. [Edit]Steps [Edit]Using Chrome on Windows Install Chrome on your PC. If you haven't yet installed Google Chrome, you can do so now for free. Here's how to get it: Go to the Chrome download page and click Download Chrome. Click Accept and Install. Click Run or Save if prompted. If you clicked Save, double-click the file you downloaded to run it, and then follow the on-screen instructions to install. Follow the on-screen instructions to install. Now that you've installed Chrome, you can open it by clicking Google Chrome in the Start menu. Sign in with your Google account. This is optional, but helpful if you want your bookmarks, passwords, history, and preferences to be available anywhere you use Chrome. Here's how:[1] Click the profile icon near the top-right corner of your browser. If you're not signed in, it'll be a gray circle with a gray outline of a person inside. Click Turn on sync. Sign in to your Google account. Click Turn on when prompted. Search the web. You can use the search box at the top of Chrome to either enter a direct URL (e.g., wikihow.com) or search the web. Here's how: Click the search box. Type your search term (or a URL if you want to access a specific website). Press . Use tabs. Google Chrome allows you to open multiple tabs within a single window, which makes it easy to browse multiple websites at the same time. Use any of these methods to open a tab:[2] Click + next to the currently-open tab at the top of the browser. Click ⁝ at the top-right corner and select New tab. Press . To open a link in a new tab, right-click the link, then select Open link in new tab. Click any tab along the top of the screen to bring it into view. Drag tabs left or right to reorder them. Right-click a tab to view options, including Reload, Duplicate (create a new tab with the same webpage), Pin tab (keep the tab in its location), Mute site (turns the sound off for this tab), Close tab, Close other tabs (closes all tabs except this one), Reopen closed tab (opens the tab you closed most recently), Bookmark all tabs (adds all tabs to your bookmarks list). To close a tab, click the X on its right side. Bookmark a site. You can use bookmarks to save links to sites you want to access again in the future.[3] Navigate to the website. Click the star at the far-right side of the address bar at the top of the browser. Click More to view all folders where you can store bookmarks. To create a new folder, click More, click New Folder, and then give your folder a name. Click Save to save the bookmark. To view all of your bookmarks, click ⁝ and select Bookmarks. Click a bookmark to open the site. Use "Find" to find strings of text on a website. If you're looking for a certain word or sentence on a page, you can use these steps: Press to open the Find window. A window will appear at the top-right corner. Type the text you're looking for. Press . All matches on the page will be highlighted. Use the arrows in the Find box to browse through all instances of the text. [Edit]Using Chrome on macOS Install Chrome on your Mac. If you haven't yet installed Google Chrome, you can do so now for free. Here's how to get it: Go to the Chrome download page and click Download Chrome. Click Accept and Install. Open "googlechrome.dmg" (the file you just downloaded). Drag the Chrome icon to the Applications folder. Enter the administrator password if prompted. Click the Chrome menu at the top of the screen and select Finder. Click Eject. Now that Chrome is installed, you can open it by clicking Google Chrome in the Applications folder. Sign in with your Google account. This is optional, but helpful if you want your bookmarks, passwords, history, and preferences to be available anywhere you use Chrome. Here's how:[4] Click the profile icon near the top-right corner of your browser. If you're not signed in, it'll be a gray circle with a gray outline of a person inside. Click Turn on sync. Sign in to your Google account. Click Turn on when prompted. Search the web. You can use the search box at the top of Chrome to either enter a direct URL (e.g., wikihow.com) or search the web. Here's how: Click the search box. Type your search term (or a URL if you want to access a specific website). Press . Use tabs. Google Chrome allows you to open multiple tabs within a single window, which makes it easy to browse multiple websites at the same time. Use any of these methods to open a tab:[5] Click + next to the currently-open tab at the top of the browser. Click ⁝ at the top-right corner and select New tab. Press . To open a link in a new tab, right-click the link, then select Open link in new tab. Click any tab along the top of the screen to bring it into view. Drag tabs left or right to reorder them. Right-click a tab to view options, including Reload, Duplicate (create a new tab with the same webpage), Pin tab (keep the tab in its location), Mute site (turns the sound off for this tab), Close tab, Close other tabs (closes all tabs except this one), Reopen closed tab (opens the tab you closed most recently), Bookmark all tabs (adds all tabs to your bookmarks list). To close a tab, click the X on its right side. Bookmark a site. You can use bookmarks to save links to sites you want to access again in the future.[6] Navigate to the website. Click the star at the far-right side of the address bar at the top of the browser. Click More to view all folders where you can store bookmarks. To create a new folder, click More, click New Folder, and then give your folder a name. Click Save to save the bookmark. To view all of your bookmarks, click ⁝ and select Bookmarks. Click a bookmark to open the site. Use "Find" to find strings of text on a website. If you're looking for a certain word or sentence on a page, you can use these steps: Press (Mac) to open the Find window. A window will appear at the top-right corner. Type the text you're looking for. Press . All matches on the page will be highlighted. Use the arrows in the Find box to browse through all instances of the text. [Edit]Using Chrome on an iPhone or iPad Install Chrome. If you haven't yet installed Google Chrome, you can do so now for free. Here's how to get it: Open the App Store . Tap Search (the magnifying glass). Type into the search bar and press the Search key. Tap GET. If you've had Chrome in the past, tap the button with the cloud inside. Follow the on-screen instructions to install. To open Chrome, tap its round red, blue, yellow, and green icon on the home screen. Sign into Chrome. This is optional, but helpful if you want your bookmarks, passwords, history, and preferences to be available anywhere you use Chrome. Here's how:[7] Tap ⋯ at the bottom of Chrome. Tap Settings (the gear). Tap Sign in to Chrome. Select an account and/or log in. Tap Continue. Tap OK, got it. Search the web. You can use the search box at the top of Chrome to either enter a direct URL (e.g., wikihow.com) or search the web. Here's how: Tap the search box. Type your search term (or a URL if you want to access a specific website). Tap the Search key on the keyboard. Use tabs. Tabs are different browser windows that allow you to keep more than one website open and accessible at the same time. To open a new tab, tap ⋯ at the bottom-right corner, then tap + New Tab. To view open tabs, tap the square in the bottom icon row containing a number. Swipe up and down to see what's open, then tap a tab to bring it into view. To close a tab, tap the square to view all tabs, then tap the X at a tab's top-right corner. To view recently-closed tabs, tap the third icon at the top of the screen (a square with an overlapping rectangle). Add a bookmark. You can use bookmarks to save links to sites you want to access again in the future. To bookmark a site, open the site, tap ⋯ at the bottom-right corner, then tap the star. To view bookmarks, tap ⋯ and select Bookmarks . Tap a bookmark to navigate to the site. Search within a webpage. Use "Find" to find strings of text on a website. If you're looking for a certain word or sentence on a page, you can use these steps: Tap ⋯, scroll down, and tap Find in Page… Type the text you're looking for. All matches on the page will be highlighted. Use the arrows at the top of the screen to browse through all instances of the text. [Edit]Using Chrome on an Android Install Chrome. Chrome comes pre-installed on most Androids. You should find its a round red, blue, green, and yellow icon on the home screen or in the app drawer. If you don't have Chrome, here's how to get it: Open the Play Store . Type into the search bar and press the Enter key. Tap INSTALL next to "Chrome." Follow the on-screen instructions to install. To open Chrome, tap its round red, blue, yellow, and green icon on the home screen or in the app drawer. Sign into Chrome. This is optional, but helpful if you want your bookmarks, passwords, history, and preferences to be available anywhere you use Chrome. Here's how:[8] Tap ⁝ at the top-right corner. Tap Settings. Tap Sign in to Chrome. Follow the on-screen instructions to sign in. Search the web. You can use the search box at the top of Chrome to either enter a direct URL (e.g., wikihow.com) or search the web. Here's how: Tap the search box. Type your search term (or a URL if you want to access a specific website). Tap the Enter key on the keyboard. Use tabs. Tabs are different browser windows that allow you to keep more than one website open and accessible at the same time. To open a new tab, tap ⁝ at the top-right corner and select New tab. Tap the square near the top-right corner of Chrome to see all open tabs.[9] Swipe up and down to see what's open, then tap one to bring it into view. To close a tab, tap the square to view open tabs, then tap the X at a tab's corner. Add a bookmark. You can use bookmarks to save links to sites you want to access again in the future. To bookmark a site, open the site, tap ⁝ at the top-right corner, then tap the star. To view bookmarks, tap ⁝ and select Bookmarks. If your address bar is at the bottom, tap the star to open your bookmarks. Tap a bookmark to navigate to the site. Search within a webpage. Use "Find" to find strings of text on a website. If you're looking for a certain word or sentence on a page, you can use these steps: Tap ⁝ and select Find in page. Type the text you're looking for. All matches on the page will be highlighted. Use the arrows in the Find box to browse through all instances of the text. [Edit]Related wikiHows Use Find in Google Chrome Add a Gmail Button to Chrome Use Bookmarks in Google Chrome Get Rid of Delta Search Engine on Google Chrome Cast from a Chrome Browser [Edit]References ↑ https://support.google.com/chrome/answer/185277?co=GENIE.Platform%3DDesktop&hl=en ↑ https://support.google.com/chrome/answer/2391819 ↑ https://support.google.com/chrome/answer/188842?hl=en&co=GENIE.Platform=Desktop ↑ https://support.google.com/chrome/answer/185277?co=GENIE.Platform%3DDesktop&hl=en ↑ https://support.google.com/chrome/answer/2391819 ↑ https://support.google.com/chrome/answer/188842?hl=en&co=GENIE.Platform=Desktop ↑ https://support.google.com/chrome/answer/185277?co=GENIE.Platform%3DiOS&hl=en&oco=1 ↑ https://support.google.com/chrome/answer/185277?co=GENIE.Platform%3DiOS&hl=en&oco=1 ↑ https://support.google.com/chrome/answer/2391819?co=GENIE.Platform%3DAndroid&hl=en

How to Assume the Brace Position Posted: 09 Oct 2021 05:00 PM PDT It's easy to tune out the in-flight safety demonstration when you're flying on a plane, but the crew is giving you valuable information. If you fly frequently or just want more details on what to do when your plane hits turbulence, you'll probably be told to brace—get into a safe position that protects your head and limbs. Learn the correct brace position so you feel prepared and you protect yourself from serious injury. You probably have questions about when to brace or about technique, so look for your answer below. [Edit]Steps [Edit]When should I assume the brace position? Listen for an announcement or watch for the seatbelt sign to flash repeatedly. If the pilot suspects a rough landing or turbulence, a member of the flight crew will make an announcement and tell you to brace for impact. Depending on the airplane, you may also see the seatbelt sign continue to flash. Take a deep breath and try to stay calm—you know what to do![1] The flight crew might say, "Get into an emergency position," or "Head down and lean forward," for instance. [Edit]How do you do the brace position? Tuck your chin down and bend forward. Check that your seat belt is buckled and tight across your lap. Then, lower your head so your chin is near your chest and bend your whole body forward as if you're rolling into a ball.[2] Drawing your head down prevents your head from jerking back suddenly. Put your hands on your head and press your head against the seat in front of you. Place your hands on the back of your head and tuck your elbows close to your sides. Put your head up against the seat that's in front of you so it will cushion any impact.[3] Remember, it's really important to bend forward so you reduce the distance between your head and the seat in front of you. Don't sit up in your seat and just bend your head over or you could really injure yourself. Keep your feet flat on the floor with your legs tucked slightly rearward. During impact, your feet will slide forward and keep moving even once the plane stops. To protect your legs and feet, plant your feet flat and pull your legs back so your feet are right below your knees.[4] Don't stretch your feet in front of you, even if you keep them flat. Your legs will continue to slide forward so you want them as far back as possible when you brace. [Edit]Are there alternatives to the brace position? Yes—when you're told to brace, make your body compact. If you don't have a seat in front of you to press your head against, don't worry! It's also acceptable to bend forward as much as possible and grab your lower legs instead of putting your hands on the back of your head.[5] Don't bend forward and stretch your arms out in front of you. You want to draw your limbs in close so you don't flail. Keep your feet flat on the floor and remember to tuck your legs back so they won't slide forward as much. [Edit]Why is it important to assume the brace position in a crash? It keeps your limbs close to your torso so they don't flail. This may not sound important, but if your legs and arms are swinging around during a crash, they could hit the chair in front of you or another passenger. Keeping your limbs tucked close prevents flailing and makes it more likely that you can survive the impact.[6] The brace position softens any impact you might have during a crash. If you don't brace and you're sitting straight up, your body will jerk forward and hit the seat or wall in front of you. Bracing brings you closer to the chair or wall so there's less momentum—this means you won't hit the surface as hard and won't get injured as badly.[7] Airplane seats are also designed to absorb shock in the event of a crash. Airlines are constantly testing and redesigning seats to offer maximum protection to their passengers. [Edit]Should I try to hold onto my child or help them brace? No—kids should brace on their own or be in an approved restraint system. You'd actually put yourself and them at risk for greater injury if you pull them onto your lap or you reach over and try to shield them. Instead, direct your child to properly brace. If they're young and weigh less than , they should be in a child-restraint system in their own seat. This gives them more protection than if they were sitting on your lap.[8] The Federal Aviation Administration strongly recommends that you put your small child into a car seat instead of keeping them on your lap.[9] [Edit]Can the brace position kill you if the plane crashes? No—that is simply a myth. Research has shown just how effective the brace position is at preventing serious injury during a crash.[10] It's simply not true that the brace position is meant to harm you! Specifically, bracing can prevent damage to your neck, shoulder injuries, and damage to your legs.[11] [Edit]Warnings Always follow the cabin crew's instructions and stay in the brace position until they direct you it's safe to sit up.[12] [Edit]Related wikiHows Write a CV for a Cabin Crew Position Survive a Plane Crash Land an Airplane in an Emergency [Edit]References [Edit]Quick Summary ↑ https://flightsafety.org/ccs/ccs_may_june98.pdf ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://pubmed.ncbi.nlm.nih.gov/9773899/ ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions ↑ https://www.faa.gov/travelers/fly_children/ ↑ https://pubmed.ncbi.nlm.nih.gov/9773899/ ↑ https://www.faa.gov/data_research/research/med_humanfacs/oamtechreports/2010s/media/201517.pdf ↑ https://www.casa.gov.au/standard-page/cabin-safety-bulletin-no6-brace-positions

How to Differentiate Polynomials Posted: 09 Oct 2021 09:00 AM PDT Differentiation is one of the fundamental processes in calculus. Differentiating a function (usually called f(x)) results in another function called the derivative, written as f'(x) ("f prime of x"). This derivative has many uses in physics and mathematics. For instance, if we graph a polynomial f(x), the derivative f'(x) tells us the slope (the rate of change) of the original function at all its points. The first section of this article teaches you to differentiate each term of the polynomial, one at a time. The second section uses this approach to walk through a typical example problem, differentiating an entire polynomial. After some practice, differentiating ${\displaystyle 5x^{3}}$ will be as second nature as multiplying and dividing. [Edit]Steps [Edit]Differentiating Polynomial Terms Differentiate any constant to zero. A constant is any ordinary number, with no variable involved—for example, 3, -16, or ${\displaystyle 2/3}$. These are freebies in any differentiation problem, because their derivative is always 0. Just cross out that term and move on.[1] Write this in the form ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(3)=0}$. This says "The derivative of 3 with respect to x is 0." The derivative of a term is the "rate of change" of that term: how quickly that term changes inside a function. Since a constant never changes (3 will always stay 3), its rate of change is always zero. Differentiate ${\displaystyle x^{1}}$ to 1. The term ${\displaystyle x^{1}}$ (which we usually write as simply ${\displaystyle x}$) is another easy one to differentiate, once you know the rule. The derivative of ${\displaystyle x}$ with respect to ${\displaystyle x}$ is always 1.[2] Write this as ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(x)=1}$. The notation dx means "derivative with respect to x." This means that we are changing the value of x, and seeing how much faster or slower the other term changes in response. In ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(x)}$, we're comparing the change in x to the change in x. That's the same thing, which is why the rate of change is 1. Write the derivative of ${\displaystyle x^{2}}$ as ${\displaystyle 2x}$. The 2 in the exponent moves in front of the x to become the coefficient (the number multiplied by x).[3]) Meanwhile, the ${\displaystyle x^{2}}$ gets reduced to ${\displaystyle x}$.[4] Have you noticed a pattern? In the derivative, the value of the variable's exponent is always one lower than it was in the original term. ${\displaystyle x^{2}}$ gets "downgraded" to ${\displaystyle x^{1}}$ (which is x), and ${\displaystyle x^{1}}$ gets "downgraded" to ${\displaystyle x^{0}}$ (which equals 1). Since the value of the variable's exponent is called the "degree" of the polynomial, we can say that differentiating a term reduces the degree of that term by one.[5] Differentiate ${\displaystyle x^{n}}$ to get ${\displaystyle nx^{n-1}}$. Or in English: to differentiate a variable x raised to an exponent, write that exponent in front of x as a coefficient, then reduce the exponent by 1. This is one of the most useful differentiation rules. The rules for deriving ${\displaystyle x^{2}}$ and ${\displaystyle x}$ above are actually just specific examples of this general rule.[6] Example: what is ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(x^{7})}$ (the derivative of ${\displaystyle x^{7}}$ with respect to x)? The exponent, 7, becomes a coefficient in front of the term: ${\displaystyle 7x^{?}}$ The new exponent is one lower than the original, 7-1=6. The answer is ${\displaystyle 7x^{6}}$. Multiply by the coefficient from the original term. The coefficient in front of the variable doesn't change when you differentiate the term. If you end up with more than one coefficient in your answer, multiply them together.[7] Example: what is ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(5x^{3})}$? ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(5x^{3})=5\times {\frac {\mathrm {d} }{\mathrm {d} x}}(x^{3})}$ (This means we can find the derivative of ${\displaystyle x^{3}}$, then multiply our answer by 5.) To find the derivative of ${\displaystyle x^{3}}$, make the exponent 3 a coefficient, then reduce the exponent by 1: ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(x^{3})=3x^{2}}$ Plug this back into your formula and multiply the two coefficients together: ${\displaystyle 5\times {\frac {\mathrm {d} }{\mathrm {d} x}}(x^{3})=5\times 3x^{2}=15x^{2}}$ [Edit]Differentiating Entire Polynomials Treat each term as a separate problem. Polynomials contain multiple terms, added or subtracted together. To differentiate the polynomial, differentiate each term separately. You can leave all of the addition and subtraction symbols alone.[8] For example, take ${\displaystyle f(x)=-12x^{3}+x^{2}-5x+6}$. The derivative, ${\displaystyle f'(x)}$, is equal to the derivative of each term, added or subtracted as they were in the original. In mathematical terms, we can write this as: ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(f(x))={\frac {\mathrm {d} }{\mathrm {d} x}}(-12x^{3}+x^{2}-5x+6)}$ ${\displaystyle ={\frac {\mathrm {d} }{\mathrm {d} x}}(-12x^{3})+{\frac {\mathrm {d} }{\mathrm {d} x}}(x^{2})-{\frac {\mathrm {d} }{\mathrm {d} x}}(5x)+{\frac {\mathrm {d} }{\mathrm {d} x}}(6)}$. Get rid of the constant term. If there is a constant (a term without a variable), delete it. Differentiating always removes the constant term.[9] In our example, 6 is the constant. ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(6)=0}$, so we can get rid of it. Careful: only terms with no variables are constants. This rule does not affect numbers that are multiplied by x or any other variable. Move each variable's exponent to the front of the term. Remember, when we differentiate, each variable's exponent becomes a coefficient. If there is already a coefficient in front of the term, multiply the two coefficients together.[10] ${\displaystyle f'(x)={\frac {\mathrm {d} }{\mathrm {d} x}}(-12x^{3})+{\frac {\mathrm {d} }{\mathrm {d} x}}(x^{2})-{\frac {\mathrm {d} }{\mathrm {d} x}}(5x)}$ ${\displaystyle =(3\times -12)x^{?}+2x^{?}-(1\times 5)x^{?}}$ ${\displaystyle =-36x^{?}+2x^{?}-5x^{?}}$ Since ${\displaystyle x=x^{1}}$, we took the "1" exponent and moved it in front of the ${\displaystyle 5x}$ term. Since multiplying by 1 never changes the term, you can skip this step once you understand what's going on. Lower each exponent by one degree. To do this, subtract 1 from each exponent in each variable term.[11] ${\displaystyle f'(x)=-36x^{3-1}+2x^{2-1}-5x^{1-1}}$ ${\displaystyle =-36x^{2}+2x^{1}-5x^{0}}$ ${\displaystyle =-36x^{2}+2x-5}$ Remember that ${\displaystyle x^{1}}$ is the same as ${\displaystyle x}$. Also remember that anything raised to the zeroth power (${\displaystyle x^{0}}$) equals 1. Find the value of the new equation at a given "x" value. You're already done with the differentiation, but there's a common next step in test problems. If you're asked to "evaluate the expression" for a value of x, all you need to do is replace each x in the new equation with the given value and solve.[12] For example, evaluate the derivative f'(x) at x=2. The derivative equation we found is ${\displaystyle f'(x)=-36x^{2}+2x-5}$ ${\displaystyle f'(2)=-36(2)^{2}+2(2)-5}$ ${\displaystyle =-36(4)+4-5}$ ${\displaystyle =-144+4-5}$ ${\displaystyle =-145}$ This answer relates back to the original function f(x). It tells us that, if we draw a tangent line to that function at x=2, the slope of that tangent line is -145. [Edit]Video [Edit]Tips Extra tricky problems might include variables raised to a negative or a fractional exponent. These functions technically aren't polynomials, but you can differentiate them with the same rules.[13] Work carefully, and make sure you are subtracting from negative exponents correctly. For instance, ${\displaystyle {\frac {\mathrm {d} }{\mathrm {d} x}}(7x^{-4})}$ ${\displaystyle =(-4\times 7)x^{-4-1}}$ ${\displaystyle =-28x^{-5}}$.[14] [Edit]Warnings These steps only work if the exponents are constants. If a variable is raised to another variable, like ${\displaystyle a^{x}}$, you'll need to follow the rules for differentiating exponential functions. [Edit]Related wikiHows Solve Math Problems Ace a Math Test Do Math Proofs Calculate Percentages Factor a Number Do Long Multiplication Calculate Your Age by Chocolate Factor Second Degree Polynomials (Quadratic Equations) [Edit]References ↑ https://www.intmath.com/differentiation/5-derivative-polynomials.php ↑ https://www.intmath.com/differentiation/5-derivative-polynomials.php ↑ https://youtu.be/REiDXCN0lGU?t=52 ↑ https://www.mathsisfun.com/calculus/power-rule.html ↑ https://www.mathsisfun.com/algebra/degree-expression.html ↑ https://www.mathsisfun.com/calculus/power-rule.html ↑ https://mathinsight.org/derivatives_polynomials_refresher ↑ https://youtu.be/-CTaxKTzbEI?t=66 ↑ https://www.intmath.com/differentiation/5-derivative-polynomials.php ↑ https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-evaluating-expressions/v/expression-terms-factors-and-coefficients ↑ https://www.mathsisfun.com/calculus/power-rule.html ↑ https://youtu.be/-CTaxKTzbEI?t=314 ↑ https://tutorial.math.lamar.edu/classes/alg/polynomials.aspx ↑ https://www.khanacademy.org/math/ap-calculus-ab/ab-differentiation-1-new/ab-2-6b/v/negative-powers-differentiation

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