X^2-50=-150-20x

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Solution for X^2-50=-150-20x equation: 



X^2-50=-150-20X

We move all terms to the left:

X^2-50-(-150-20X)=0

We add all the numbers together, and all the variables

X^2-(-20X-150)-50=0

We get rid of parentheses

X^2+20X+150-50=0

We add all the numbers together, and all the variables

X^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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