Respuesta :

Answer:

B. 3x^2 - 13x + 7

Step-by-step explanation:

6x^2 - 5x + 3 - (3x^2 + 8x - 4)

6x^2 - 5x + 3 - 3x^2 - 8x + 4

3x^2 - 13x + 7

The answer is A

6x^2 -3x^2= 3x^2

-5x+8x=3x

-4+3=-1