SOLUTION: Can you help me with this problem please f(x)=9x+7; g(x)=5x and solve for (f o f)(x) and (g o g)(x) Thank you so much for helping me with this problem.

Algebra ->  Functions -> SOLUTION: Can you help me with this problem please f(x)=9x+7; g(x)=5x and solve for (f o f)(x) and (g o g)(x) Thank you so much for helping me with this problem.      Log On


   

Question 1015893: Can you help me with this problem please
f(x)=9x+7; g(x)=5x and solve for (f o f)(x) and (g o g)(x)
Thank you so much for helping me with this problem.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
(fo f)(x)=
9(9x+7)+7, substituting f(x) in for x
=81x+70
(g o g)(x)=5*(5x)=25x.