Respuesta :

gmany

Answer:

(f + g)(x) = 3x² - 6

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) = 2x² + 1, g(x) = x² - 7.

Substitute:

(f + g)(x) = (2x² + 1) + (x² - 7) = (2x² + x²) + (1 - 7) = 3x² - 6