Respuesta :

clarch19

Answer:

-4x² + 12x

Step-by-step explanation:

2x(x+7-1(3x+1)) = 2x(x+7-3x-1)

= 2x² + 14x - 6x² - 2x

= -4x² + 12x
2x(x+7-(3x+1)
The answer is 4x-31=14