Question

How do you find the compositions given `f(x)=x^3+2` and `g(x)=root3(x-2)`?

Answer 1

fg(x) = x and gf(x) = x

Explanation:

I think that these two functions are the inverse of each other. You can check this by letting y = f(x) and rearranging to make x the subject.
If you then make a composite function, you will get the answer above by replacing x with the other function.