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## Homework Statement

I have the answer but I don't understand how they got it. What did they expand? These are the last two in the book but I cant understand how they cancelled the denominator.

**2. Equations**

Equation 1:

f(x) = (x

^{3}+8)/(x+2)

Equation 2:

f(x) = (x

^{3}-27)/(x-3)

The answers are:

x

^{2}-2x+4

x

^{2}+3x+9

Thanks :).