20x2-108x+144=0

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Solution for 20x2-108x+144=0 equation:



20x^2-108x+144=0
a = 20; b = -108; c = +144;
Δ = b2-4ac
Δ = -1082-4·20·144
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-108)-12}{2*20}=\frac{96}{40} =2+2/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-108)+12}{2*20}=\frac{120}{40} =3 $

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