72x^2+7x-3=0

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Solution for 72x^2+7x-3=0 equation:



72x^2+7x-3=0
a = 72; b = 7; c = -3;
Δ = b2-4ac
Δ = 72-4·72·(-3)
Δ = 913
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-\sqrt{913}}{2*72}=\frac{-7-\sqrt{913}}{144} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+\sqrt{913}}{2*72}=\frac{-7+\sqrt{913}}{144} $

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