Respuesta :

DWRead

Answer:

Step-by-step explanation:

f(x) = x^2+2x

g(x) = 3x-9

g(3) = 3*3-9 = 0

(f∘g)(3) = f(g(3)) = 0^2 + 2*0 = 0

:::::

f(-2) = (-2)^2+2(-2) = 0

(g∘f)(-2) = g(f(-2)) = g(0) = 3(0)-9 = -9