Find f(x) and g(x) so h(x)=f(g(x))

h(x)=(x+1)^3-5

We can see that g(x) should be x+1 and f(x) should be x^3-5.

So, f(x) = x^3 - 5 and g(x) = x + 1.

Then, h(x) = f(g(x)) = f(x + 1) = (x + 1)^3 - 5.