Respuesta :

Answer:

x^3-x^2-17x+12

Step-by-step explanation:

(x+4)(x^2-5x+3)

x(x^2-5x+3)+4(x^2-5x+3)

x^3-5x^2+3x+4x^2-20x+12

x^3-x^2-17x+12