17x^2+12x-5=0

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Solution for 17x^2+12x-5=0 equation:



17x^2+12x-5=0
a = 17; b = 12; c = -5;
Δ = b2-4ac
Δ = 122-4·17·(-5)
Δ = 484
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{484}=22$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(12)-22}{2*17}=\frac{-34}{34} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(12)+22}{2*17}=\frac{10}{34} =5/17 $

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