SOLUTION: given f(x) = x+1 and g(x) = x2 + 2x-8, find (g*f)(x) How do I do this problem

Algebra ->  Finance -> SOLUTION: given f(x) = x+1 and g(x) = x2 + 2x-8, find (g*f)(x) How do I do this problem       Log On


   

Question 1028670: given f(x) = x+1 and g(x) = x2 + 2x-8, find (g*f)(x)
How do I do this problem
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
given f(x) = x+1 and g(x) = x2 + 2x-8, find (g*f)(x)
----
(g*f)(x) = g(x)*f(x) = (x^2+2x-8)(x+1) = x^3 + x^2 + 2x^2 -8x +2x - 8
------------------
= x^3 + 3x^2 - 6x - 8
------------------
Cheers,
Stan H.
-----------------