Respuesta :

Answer:

2x² - 3

Step-by-step explanation:

note that (g ○ f)(x) = g(f(x))

substitute x = f(x) into g(x)

g(f(x)) = g(x² - 5 ) = 2(x² - 5) + 7 = 2x² - 10 + 7 = 2x² - 3