Lesson goal: Raising polynomials to some power

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In the previous lesson, you saw how the algebra function knows how to crunch algebraic symbols (x, y, z, etc.) for you, in figuring out exponents.

Let's use this more now to raise polynomials to a power. Remember, for instance the F.O.I.L. method (first, outer, innner, last)? This allows you to handle something like $(x+a)^2$, which is $(x+a)(x+a)$, which comes out to be $x^2+2a+a^2$.

The algebra function allows you to handle F.O.I.L. problems, and then some. Give it a try below.

Now you try. Try raising some polynomials to a power. Get some problems out of your math book if you can't think of any.

Type your code here:

See your results here:

This will find the answer to $(x+2)^2$.

You can try all kinds of expression with this (ones you wouldn't dare do by hand), like:

  • $(x+2)^5$
  • $(x-2a+4b-y)^2$
  • $(2x-4y)^3$
  • $(x+5)(x-5)$
  • $(x+5)^{20}$ (That's right! To the 20th power!)
Show a friend, family member, or teacher what you've done!

Here is a share link to your code:

Does your code work? Want to run it on your iPhone?

Here's your code:

  1. Use [Control]-[C] (Windows) or [⌘]-[C] (MacOS) to copy your code.

  2. Paste it using [Control]-[V] (Windows) or [⌘]-[V] (MacOS) into this page

  3. Then click the "Use on iPhone" button that you'll see.