How do you solve $-x=x^2$ ?

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Answer 1 · 2016-07-07T19:41:27

$x = 0 or x = -1$

Add $x$ to both sides.

$x^2 + x = 0$

Factor

$x(x+1) = 0$

In order to satisfy the equation, the left hand side must equal zero. This means that either $x = 0$ or $x+1 = 0$

$implies x = 0 or x = -1$

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