Question 380907
you are given:


f(x) = 8x+6
g(x) = x^2


you want to find:


g(f(x))


start with g(x) = x^2


replace x with f(x) to get g(f(x)) = (f(x))^2


replace f(x) with 8x+6 to get g(8x+6) = (8x+6)^2


solve by squaring 8x+6 to get g(f(x)) = 64x^2 + 96x + 36