Respuesta :

Answer:-15x^3-x^2+8x+4

Sry if I am wrong

Step-by-step explanation:

Answer:

Step-by-step explanation:

-7x^3 - 8x^3 - 3x^2 + 2x^2 + 8x + 4

-15x^3 - x^2 + 8x + 4