Question

f(x)=3x^3 +7 -1
f(1)=3(1)^3 +7(1) -1
=9
g(y)=-2y^2+5
g(-3) = -2(-3)^2 +5
g(-3)=-13
What does f(g(x)) =?????????

Answer 1

g(x)=2x^2+5 so f(g(x)) = 3(2x^2+5)^3 +7(2x^2+5)-1

Answer 2

thanks