6.25y^2+12y=0

Solution for 6.25y^2+12y=0 equation:

6.25y^2+12y=0

a = 6.25; b = 12; c = 0;
Δ = b2-4ac
Δ = 122-4·6.25·0
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(12)-12}{2*6.25}=\frac{-24}{12.5}
=-1+7.6666666666667/8.3333333333333
$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(12)+12}{2*6.25}=\frac{0}{12.5}
=0
$