I have to evaluate a limit, which I know how to do, but the problem I'm having is the factoring.
I know the denominator factors to (x+3)(x-3) but I can't do the numerator when there's 3 different levels of exponents for x.
Originally Posted by Adrian
x^3 +2x^2 -9x -18
By just looking, you could see that (x+2) is in there.
= (x^3 +2x^2) -(9x +18)
= (x^2)(x+2) -9(x+2)
= (x+2)(x^2 -9)
So, your whole rational expression,