2x^2-1x-17=0

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Solution for 2x^2-1x-17=0 equation:



2x^2-1x-17=0
a = 2; b = -1; c = -17;
Δ = b2-4ac
Δ = -12-4·2·(-17)
Δ = 137
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{137}}{2*2}=\frac{1-\sqrt{137}}{4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{137}}{2*2}=\frac{1+\sqrt{137}}{4} $

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