SOLUTION: Please do step by step. f(x)=-x to the third power+3x to the second power-x+4, find f(-2), f(0), and f(3).

Algebra ->  Functions -> SOLUTION: Please do step by step. f(x)=-x to the third power+3x to the second power-x+4, find f(-2), f(0), and f(3).      Log On


   

Question 82193: Please do step by step.
f(x)=-x to the third power+3x to the second power-x+4, find f(-2), f(0), and f(3).
Answer by sofiyacherni(99) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=-x^3+3x^2-x+4,
find f(-2) evaluate that equation at -2, so substitute -2 whenever you see x
so

f%280%29=-0%2B0-0%2B4=4
f%283%29=-%283%29%5E3%2B3%283%29%5E2-%283%29%2B4=-27%2B27%2B1=1