-5y^2+180=0

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Solution for -5y^2+180=0 equation:



-5y^2+180=0
a = -5; b = 0; c = +180;
Δ = b2-4ac
Δ = 02-4·(-5)·180
Δ = 3600
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{3600}=60$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-60}{2*-5}=\frac{-60}{-10} =+6 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+60}{2*-5}=\frac{60}{-10} =-6 $

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