Question

Question Given the following functions f(x) and g(x), find (f ° g)(x).

f(x)=-x^2-x+7
g(x)=5x+4​

Answer 1

Explanation:

g(x) = 5x + 4

f(5x + 4) = (5x + 4)^2 - (5x + 4) + 7

25x^2 + 40x + 16 - 5x - 4 + 7

25x^2 + 35x + 19