3y^2-31y-60=0

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Solution for 3y^2-31y-60=0 equation:



3y^2-31y-60=0
a = 3; b = -31; c = -60;
Δ = b2-4ac
Δ = -312-4·3·(-60)
Δ = 1681
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1681}=41$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-31)-41}{2*3}=\frac{-10}{6} =-1+2/3 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-31)+41}{2*3}=\frac{72}{6} =12 $

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