-36=X2+12x

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Solution for -36=X2+12x equation: 



-36=X2+12X

We move all terms to the left:

-36-(X2+12X)=0

We add all the numbers together, and all the variables

-(+X^2+12X)-36=0

We get rid of parentheses

-X^2-12X-36=0

We add all the numbers together, and all the variables

-1X^2-12X-36=0

a = -1; b = -12; c = -36;
Δ = b2-4ac
Δ = -122-4·(-1)·(-36)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$X=\frac{-b}{2a}=\frac{12}{-2}=-6$

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