Respuesta :

[tex](2x -1 )(x + 6) \\ 2x(x + 6) - 1(x + 6) \\ 2 {x}^{2} + 12x - x - 6 \\ 2 {x}^{2} + 11x - 6[/tex]

So b is 11.

Answer:

Step-by-step explanation:

(2x – 1)(х + 6) = 0.

2x²+12x-x-6

the   general form is : 2x²+11x-6    so : b=11