Respuesta :

Answer:

4x^2 - 4.

Step-by-step explanation:

(g*f)(x) = g(f) * f(x)

= (x^2 - 1)* 4

= 4x^2 - 4 (answer).

Answer:

15

Step-by-step explanation:

g(x)=x^2-1

g*f(x)

g(4)

4^2-1

16-1

15