Respuesta :

Answer:

[tex](2x - 1)(x + 4) \\ = 2x {}^{2} + 8x - x - 4 \\ = 2x {}^{2} + 7x - 4 \\ = 2x {}^{2} + 8x - x - 4 \\ = 2x(x + 4) - (x + 4) \\ = (2x - 1) (x + 4) \\ \alpha = 1 \div 2 = 0.5 \\ \beta = - 4[/tex]

So the solution is 1/2

cvmburnett2028

Answer:

18

Step-by-step explanation:

PEMDAS

What is X? Lets say X is 5.

2x5-1=9

5+4=9

9+9=18