3x-12/2x=2

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Solution for 3x-12/2x=2 equation:



3x-12/2x=2
We move all terms to the left:
3x-12/2x-(2)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
We multiply all the terms by the denominator
3x*2x-2*2x-12=0
Wy multiply elements
6x^2-4x-12=0
a = 6; b = -4; c = -12;
Δ = b2-4ac
Δ = -42-4·6·(-12)
Δ = 304
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:
$\sqrt{\Delta}=\sqrt{304}=\sqrt{16*19}=\sqrt{16}*\sqrt{19}=4\sqrt{19}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-4\sqrt{19}}{2*6}=\frac{4-4\sqrt{19}}{12} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+4\sqrt{19}}{2*6}=\frac{4+4\sqrt{19}}{12} $

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