6x(x-1)-4x=22

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Solution for 6x(x-1)-4x=22 equation:



6x(x-1)-4x=22
We move all terms to the left:
6x(x-1)-4x-(22)=0
We add all the numbers together, and all the variables
-4x+6x(x-1)-22=0
We multiply parentheses
6x^2-4x-6x-22=0
We add all the numbers together, and all the variables
6x^2-10x-22=0
a = 6; b = -10; c = -22;
Δ = b2-4ac
Δ = -102-4·6·(-22)
Δ = 628
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:
$\sqrt{\Delta}=\sqrt{628}=\sqrt{4*157}=\sqrt{4}*\sqrt{157}=2\sqrt{157}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-10)-2\sqrt{157}}{2*6}=\frac{10-2\sqrt{157}}{12} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-10)+2\sqrt{157}}{2*6}=\frac{10+2\sqrt{157}}{12} $

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