Respuesta :

The answer would be 2x1=x so x would be 2

Step-by-step explanation:

Answer:

x = 7, - 8

Step-by-step explanation:

x^2 + x - 56 = 0

x^2 + 8x - 7x - 56 = 0

x ( x + 8 ) - 7 ( x + 8 ) = 0

( x - 7 ) ( x + 8 ) = 0

x - 7 = 0

x = 7

x + 8 = 0

x = - 8