Find two nontrivial functions

Question

f(x) and g(x) so f(g(x))= (-7-6x)⁴

Answer 1

The easiest is to take something in parentheses as g(x) and what is done to the quantity in parentheses as f(x):

g(x) = -7-6x f(x) = x⁴

There are many ways to do this.

Please consider a tutor. Take care.