Question

reducir : (x+1)(x-2)+x=0

Answer 1

Respuesta:

x² -2 = 0

Explicación:

(x) (x) = x²

(x) (-2) = -2x

(1) (x) = x

(1) (-2) = -2

x² - 2x + x + x -2 = 0

x² -2 =0