How do you solve (x+2)(x-1)= 0?

Jul 6, 2015

The solutions are:
color(green)(x=-2, x=1

Explanation:

color(green)((x+2)(x-1) = 0, is the factorised form of the equation
${x}^{2} + x - 2 = 0$

Whenever we have factors of an equation we need to equate each of the factors with zero to find the solutions:

So,
$x + 2 = 0 , x = - 2$
$x - 1 = 0 , x = 1$

So the solutions are:
color(green)(x=-2, x=1