En resumen

2(x + 1)(x - 7) = 0 (2x + 2)(x - 7) = 0 2x + 2 = 0 x - 7 = 0 2x = - 2 x = 7 x = - 2 / 3 x = - 1 CS = ( - 1 ; 7).

Mejor respuesta

Jessicamerid
5

2(x + 1)(x - 7) = 0

(2x + 2)(x - 7) = 0

2x + 2 = 0 x - 7 = 0

2x = - 2 x = 7

x = - 2 / 3

x = - 1

CS = ( - 1 ; 7).