Respuesta :

Answer:

x^3-12x^2+39x-28

Step-by-step explanation:

(x-4)(x-7)(x-1)

(x^2-4x-7x+28)(x-1)

(x^2-11x+28)(x-1)

x^3-11x^2+28x-x^2+11x-28

x^3-11x^2-x^2+28x+11x-28

x^3-12x^2+39x-28