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

1 Answer

Mar 29, 2017

$x = 2$

Explanation:

$x^2 = x + 2$

$x^2 - x= 2$

$(x * x )-x = 2$

$(x*x)-x = x * (x - 1)$

$x *(x-1) = 2$

$(2-1)x = 2$

$1x = 2$

$1 = 2/x$

$x = 2$

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