SOLUTION: if f(x)=X^2 + 8x + 1 and g(x)=2x, find the following composition (f g)(3)

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Question 968042: if f(x)=X^2 + 8x + 1 and g(x)=2x, find the following composition
(f g)(3)
Answer by amarjeeth123(570) About Me  (Show Source):
You can put this solution on YOUR website!
fog(x)=(2x)^2+8(2x)+1=4x^2+16x+1
fog(3)=4(9)+16(3)+1=36+48+1=85