Respuesta :

Answer:x^4-2x^3-17x^2+8x+72

Step-by-step explanation:

X=3 x=-3 x=4 x=-2

(X-3)(x+3)(x-4)(x+2)

(X^2-9)(x^2-2x-8)

X^4-2x^3-8x^2-9x^2+8x+72

X^4-2x^3-17x^2+8x+72