SOLUTION: Given f(x)=-x^3+2x^2-2x-2, find f(-2). I need the steps to get the answer.

Algebra ->  Functions -> SOLUTION: Given f(x)=-x^3+2x^2-2x-2, find f(-2). I need the steps to get the answer.      Log On


   

Question 411850: Given f(x)=-x^3+2x^2-2x-2, find f(-2). I need the steps to get the answer.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+-x%5E3+%2B+2x%5E2+-+2x+-+2. To find f(-2), replace x with -2 and simplify:

f%28-2%29+=+-%28-2%29%5E3+%2B+2%28-2%29%5E2+-+2%28-2%29+-+2

f%28-2%29+=+18