evaluate the two compositions

Question

(f*g)(x)
(h*g)(x)
using the functions
F(x)=2x+5
g(x)= x^2-3
h(x)= 7-x/3

Answer 1

(f*g)(x)
= (2x+5)(x^2 - 3)
= 2x^3 + 5x^2 - 6x - 15

do the other one in the same way