Respuesta :

Yang100

Answer:

x^3+7x^2+14x+8

Step-by-step explanation:

(x+4)(x^2+3x+2)

x^3+3x^2+2x+4x^2+12x+8

x^3+3x^2+4x^2+2x+12x+8

x^3+7x^2+14x+8