5x2+6x-13=0

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Solution for 5x2+6x-13=0 equation:



5x^2+6x-13=0
a = 5; b = 6; c = -13;
Δ = b2-4ac
Δ = 62-4·5·(-13)
Δ = 296
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:
$\sqrt{\Delta}=\sqrt{296}=\sqrt{4*74}=\sqrt{4}*\sqrt{74}=2\sqrt{74}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{74}}{2*5}=\frac{-6-2\sqrt{74}}{10} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{74}}{2*5}=\frac{-6+2\sqrt{74}}{10} $

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