Lesson goal: Raising polynomials to some power

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Raising a polynomial to a power means multiplying it by itself multiple times. For example, squaring a binomial: $$(x + 2)^2 = (x + 2)(x + 2) = x^2 + 4x + 4$$ Cubing a binomial: $$(x + 1)^3 = (x + 1)(x + 1)(x + 1) = x^3 + 3x^2 + 3x + 1$$ As powers get larger, doing the multiplication and collecting like terms by hand becomes very tedious and error-prone. The algebra("...") function expands expressions to any integer power instantly.
algebra("(x + 2)^2")algebra("(x + 1)^3")
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The caret ^ operator denotes exponentiation.

Now you try. Try expanding (x - 3)^4 and (2*x + 1)^3.

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