4x(2x-3)=6x+2

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Solution for 4x(2x-3)=6x+2 equation:



4x(2x-3)=6x+2
We move all terms to the left:
4x(2x-3)-(6x+2)=0
We multiply parentheses
8x^2-12x-(6x+2)=0
We get rid of parentheses
8x^2-12x-6x-2=0
We add all the numbers together, and all the variables
8x^2-18x-2=0
a = 8; b = -18; c = -2;
Δ = b2-4ac
Δ = -182-4·8·(-2)
Δ = 388
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:
$\sqrt{\Delta}=\sqrt{388}=\sqrt{4*97}=\sqrt{4}*\sqrt{97}=2\sqrt{97}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-2\sqrt{97}}{2*8}=\frac{18-2\sqrt{97}}{16} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+2\sqrt{97}}{2*8}=\frac{18+2\sqrt{97}}{16} $

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