Respuesta:
(x-7)(x+8) Espero haberte ayudado.
x^2 + x = 56
x^2 + x - 56 = 0
(x + ??? ) (x - ????) = 0
(x + 8) (x - 7) = 0
ahora
(x + 8) = 0 .................... (x - 7) = 0
x = 0 - 8 ........................ x = 0 + 7
x= -8 ............................... x = 7
Tu respuesta sera
x = -8
y
x= 7
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Respuesta:
(x-7)(x+8) Espero haberte ayudado.
x^2 + x = 56
x^2 + x - 56 = 0
(x + ??? ) (x - ????) = 0
(x + 8) (x - 7) = 0
ahora
(x + 8) = 0 .................... (x - 7) = 0
x = 0 - 8 ........................ x = 0 + 7
x= -8 ............................... x = 7
Tu respuesta sera
x = -8
y
x= 7