SOLUTION: I have come up with several different answers and am really not sure what I am doing. I could use some help please. f(x)=-6x+5 and g(x)=x^2+8x. Find the (fog)(x)

Algebra ->  College  -> Linear Algebra -> SOLUTION: I have come up with several different answers and am really not sure what I am doing. I could use some help please. f(x)=-6x+5 and g(x)=x^2+8x. Find the (fog)(x)      Log On


   



Question 532299: I have come up with several different answers and am really not sure what I am doing. I could use some help please.
f(x)=-6x+5 and g(x)=x^2+8x. Find the (fog)(x)

Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=-6x+5 and g(x)=x^2+8x.
Find the (fog)(x) = f[g(x)] = f(x^2+8x)
---
= -6(x^2+8x)+5
---
= -6x^2-48x+5
==================
Cheers,
Stan H.
==================

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Just take the definition of and insert it in place of in the definition of



All that is left is to simplify.

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism