2x+4x(x-1)=2+4x

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Solution for 2x+4x(x-1)=2+4x equation:



2x+4x(x-1)=2+4x
We move all terms to the left:
2x+4x(x-1)-(2+4x)=0
We add all the numbers together, and all the variables
2x+4x(x-1)-(4x+2)=0
We multiply parentheses
4x^2+2x-4x-(4x+2)=0
We get rid of parentheses
4x^2+2x-4x-4x-2=0
We add all the numbers together, and all the variables
4x^2-6x-2=0
a = 4; b = -6; c = -2;
Δ = b2-4ac
Δ = -62-4·4·(-2)
Δ = 68
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:
$\sqrt{\Delta}=\sqrt{68}=\sqrt{4*17}=\sqrt{4}*\sqrt{17}=2\sqrt{17}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2\sqrt{17}}{2*4}=\frac{6-2\sqrt{17}}{8} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2\sqrt{17}}{2*4}=\frac{6+2\sqrt{17}}{8} $

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