SOLUTION: Help with this one please let f(x)=2x^3 and g(x)1/4^x then whats f(g(7x+7)

Algebra ->  Functions -> SOLUTION: Help with this one please let f(x)=2x^3 and g(x)1/4^x then whats f(g(7x+7)      Log On


   

Question 852047: Help with this one please
let f(x)=2x^3 and g(x)1/4^x
then whats f(g(7x+7)
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
IF f%28x%29=2x%5E3 and g%28x%29=1%2F4%5Ex=%281%2F4%29%5Ex
g%287x%2B7%29=1%2F4%5E%287x%2B7%29 .
So far, it was just a question of substituting.
Maybe that expression can be simplified (now or later).
Then (simplifying later rather than sooner)