2x(x-6)=6

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Solution for 2x(x-6)=6 equation:



2x(x-6)=6
We move all terms to the left:
2x(x-6)-(6)=0
We multiply parentheses
2x^2-12x-6=0
a = 2; b = -12; c = -6;
Δ = b2-4ac
Δ = -122-4·2·(-6)
Δ = 192
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:
$\sqrt{\Delta}=\sqrt{192}=\sqrt{64*3}=\sqrt{64}*\sqrt{3}=8\sqrt{3}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-12)-8\sqrt{3}}{2*2}=\frac{12-8\sqrt{3}}{4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-12)+8\sqrt{3}}{2*2}=\frac{12+8\sqrt{3}}{4} $

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