19x^2+18x-6=0

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Solution for 19x^2+18x-6=0 equation:



19x^2+18x-6=0
a = 19; b = 18; c = -6;
Δ = b2-4ac
Δ = 182-4·19·(-6)
Δ = 780
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{780}=\sqrt{4*195}=\sqrt{4}*\sqrt{195}=2\sqrt{195}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(18)-2\sqrt{195}}{2*19}=\frac{-18-2\sqrt{195}}{38} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(18)+2\sqrt{195}}{2*19}=\frac{-18+2\sqrt{195}}{38} $

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