Find (f∘g)(x).

Question

f(x)=4x–7
g(x)=
–
4x–5
Write your answer as a polynomial in simplest form.
(f∘g)(x)=

Answer 1

To find (f∘g)(x), we need to substitute g(x) into f(x). Thus,
(f∘g)(x) = f(g(x))
= f(-4x - 5)
= 4(-4x - 5) - 7
= -16x - 20 - 7
= -16x - 27