Question

Solución de la ecuación
x2 + x = 56​

Answer 1

x² + x = 56​

x² + x - 56 = 0

x          -7

x​          +8

-7x + 8x = x

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

x - 7 = 0        x+8 = 0

x = 7          x =  -8

CS = (-8 ; 7)

Eternamente axllxa