Respuesta :

Answer:

Step-by-step explanation:

f(x) = x + 7

g(x) = x^2 - 1

Part A: f(x^2 - 1) = x^2 - 1 + 7 = x^2 + 6

Part B: g(x+7) = (x + 7)^2 - 1 = x^2 + 14x + 49 - 1 = x^2 + 14x + 48