Question

If Fx) = x - 7 and G(x) = x^3, what is G(F(x))?

A. x^2(x-7)
B. x^2 + x-7
C. x^3.7
D. (x-7)^3

Answer 1

`\huge\boxed{Option \ D:f(g(x)) = (x-7)^3}`

Explanation:

`f(x) = x -1\\g(x) = x^3`

We've to find
`f(g(x))`

Which will be
`f(x-7)`

Putting x in f(x) as x-7

So,

`f(g(x)) = (x-7)^3`