Respuesta :

choixongdong
8x^2 + 9 - 6x^2 - 2x - 2
= 2x^2 - 2x + 7

answer is B
2x^2 - 2x + 7
(8x^2+9) - (6x^2+2x+2)
8x^2-6x^2-2x+9-2
(8x^2-6x^2)+(9-2)-2x
2x^2-2x+7

So the answer would be B