Question 949840
g(x) = 3x - 4


g(f(x)) = 3*( f(x) ) - 4 ... replace EVERY x with f(x)


g(f(x)) = 3*( x^2 ) - 4 ... replace f(x) on the right side with x^2


So, g(f(x)) = <font color="red">3x^2 - 4</font>