2g^2-7g-8=0

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Solution for 2g^2-7g-8=0 equation: 



2g^2-7g-8=0

a = 2; b = -7; c = -8;
Δ = b2-4ac
Δ = -72-4·2·(-8)
Δ = 113
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$g_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$g_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$g_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-\sqrt{113}}{2*2}=\frac{7-\sqrt{113}}{4}
$


$g_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{113}}{2*2}=\frac{7+\sqrt{113}}{4}
$

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