-X^2-20x-104=-4

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Solution for -X^2-20x-104=-4 equation: 



-X^2-20X-104=-4

We move all terms to the left:

-X^2-20X-104-(-4)=0

We add all the numbers together, and all the variables

-1X^2-20X-100=0

a = -1; b = -20; c = -100;
Δ = b2-4ac
Δ = -202-4·(-1)·(-100)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$X=\frac{-b}{2a}=\frac{20}{-2}=-10$

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