How do you solve $x^{2} - x = 2$ $x^2-x=2$ graphically?

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Answer 1 · 2018-06-11T14:01:44

$x = - 1 or + 2$ $x=-1 or +2$

To solve $x^{2} - x = 2$ $x^2-x =2$

Let $y = x^{2} - x - 2$ $y= x^2-x-2$

Then we are to solve $y = 0$ $y=0$

The graph of $y$ $y$ is below.

graph{ x^2-x-2 [-5.55, 5.55, -2.78, 2.77]}

From which we can see that $y = 0$ $y=0$ where $x = - 1 or + 2$ $x=-1 or +2$

Hence, the solution to our equation is $x = - 1 or + 2$ $x=-1 or +2$

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