25000x^2+20000x=-4000

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Solution for 25000x^2+20000x=-4000 equation: 



25000x^2+20000x=-4000

We move all terms to the left:

25000x^2+20000x-(-4000)=0

We add all the numbers together, and all the variables

25000x^2+20000x+4000=0

a = 25000; b = 20000; c = +4000;
Δ = b2-4ac
Δ = 200002-4·25000·4000
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-20000}{50000}=-2/5$

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