Respuesta :

Answer:

-40x³ + 44x² - 66x - 36

Step-by-step explanation:

f(x) = 10x + 4

g(x) = -4x² + 6x – 9

Therefore:

f(x) · g(x) = (10x + 4) · (-4x² + 6x - 9) = -40x³ + 44x² - 66x - 36