6x^2-78x+240=0

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Solution for 6x^2-78x+240=0 equation:



6x^2-78x+240=0
a = 6; b = -78; c = +240;
Δ = b2-4ac
Δ = -782-4·6·240
Δ = 324
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{324}=18$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-78)-18}{2*6}=\frac{60}{12} =5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-78)+18}{2*6}=\frac{96}{12} =8 $

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