Question

if f(x)= x-7 and g(x) = x^3, what is G(F(x))?
A. x^3 + x -7
B. (x-7)^3
C. x^3 - 7
D. X^3(X-7)

Answer 1

\(g(f(x))=(f(x))^3\)

Answer 2

where you see x in g(x) you replace with f(x)
then f(x) is x-7 so you replace it by that afterwards

Answer 3

\(g(f(x))=(\color{red}{x-7})^3\)
the red is f(x)

Answer 4

Replace x in x^3 with the quantity, x-7
B. ?

Answer 5

Thanks so much guys