Question

If f(x)=-4x-4 and g(x)=x^3, what is (g • f)(-2)

Answer 1

(g • f)(-2) = -32

Explanation:

f(x)=-4x-4 and g(x)=x^3

(g • f)(x) = x^3 * (-4x - 4)

(g • f)(x) = -4x^4 - 4x^3

if x = - 2 then

(g • f)(-2) = -4(-2)^4 - 4(-2)^3

(g • f)(-2) = -4(16) - 4(-8)

(g • f)(-2) = -64 + 32

(g • f)(-2) = -32