Question

et f(x)=5 x − 4 and g(x) = x2 − 8. Compute the following functions.
1. f(g(x)) =
2. g(f(x)) =
3. f(f(x)) =
4. g(g(x)) =

Answer 1

so you now f (x)= 5x - 4 so now for the 1st one plug in g(x) into the 5X

f(g(x))= 5(x2-8)-4
f(g(x))= 5x2-40-4
f(g(x))= 5x2-44
do the same for the others

Answer 2

let 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)) =