12x+36=-x2

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Solution for 12x+36=-x2 equation: 



12x+36=-x2

We move all terms to the left:

12x+36-(-x2)=0

We add all the numbers together, and all the variables

-(-1x^2)+12x+36=0

We get rid of parentheses

1x^2+12x+36=0

We add all the numbers together, and all the variables

x^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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