Question

Solve. x2 - x = 6.

x = 3 and x = -2
x = -3 and x = 2
x = 6 and x = -1
x = -6 and x = 1

@Liltico

Answer 1

hmm,
x^2 -x =6
x^2 -x -6 = 0,
x^2 - 3x + 2x - 6 =0
x (x-3) + 2 (x-3) = 0
(x+2)(x-3) = 0

so, x +2 = 0 => x = -2
and x -3 = 0 => x =3

First option is correct