0,05x2+x-199920=0

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Solution for 0,05x2+x-199920=0 equation:



0.05x^2+x-199920=0
a = 0.05; b = 1; c = -199920;
Δ = b2-4ac
Δ = 12-4·0.05·(-199920)
Δ = 39985
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-\sqrt{39985}}{2*0.05}=\frac{-1-\sqrt{39985}}{0.1} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{39985}}{2*0.05}=\frac{-1+\sqrt{39985}}{0.1} $

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