Respuesta :

Answer:
y=2x^3+2x^2-6x
Step-by-step explanation:
y=k(x+3)(x-2) x
∵(1,-8)
∴ -8 = k(1+3)(1-2)1
∴ k=2
∴y=2(x+3)(x-2)x=2x^3+2x^2-6x