math
posted by Cara .
ket f(x)=5 x − 4 and g(x) = x^2 − 8. Compute the following functions.
1. f(g(x)) =
2. g(f(x)) =
3. f(f(x)) =
4. g(g(x)) =

I will do one of them, then you do the others the same way ...
2.
g(f(x))
= g(5x4)
= (5x4)^2  8