60x^2+18x-60=0

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Solution for 60x^2+18x-60=0 equation:



60x^2+18x-60=0
a = 60; b = 18; c = -60;
Δ = b2-4ac
Δ = 182-4·60·(-60)
Δ = 14724
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{14724}=\sqrt{36*409}=\sqrt{36}*\sqrt{409}=6\sqrt{409}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(18)-6\sqrt{409}}{2*60}=\frac{-18-6\sqrt{409}}{120} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(18)+6\sqrt{409}}{2*60}=\frac{-18+6\sqrt{409}}{120} $

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