g^2+9g+2=0

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Solution for g^2+9g+2=0 equation: 



g^2+9g+2=0

a = 1; b = 9; c = +2;
Δ = b2-4ac
Δ = 92-4·1·2
Δ = 73
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{-(9)-\sqrt{73}}{2*1}=\frac{-9-\sqrt{73}}{2}
$


$g_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+\sqrt{73}}{2*1}=\frac{-9+\sqrt{73}}{2}
$

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