How do you solve $x^2 - x =30$ using the quadratic formula?

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How do you solve $x^2 - x =30$ using the quadratic formula?

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Answer 1 · 2016-02-15T19:12:35

$x=6 or x=-5$

Explanation:

arrange the equation $x^2 - x -30=0$
$x=\frac{-b\pm\sqrt{b^2-4ac\ }}{2a}.$
now $a=1 ,b=-1 and c=-30$
now solve using the quadratic equation
and get two equations one is $x=(1 +11)/ 2$ and $x=(1-11)/2$
after solving them you will get $x=6$ and $x=-5$

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How do you solve $x^2 - x =30$ using the quadratic formula?

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