12x2+2x=8

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Solution for 12x2+2x=8 equation:



12x^2+2x=8
We move all terms to the left:
12x^2+2x-(8)=0
a = 12; b = 2; c = -8;
Δ = b2-4ac
Δ = 22-4·12·(-8)
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{-(2)-2\sqrt{97}}{2*12}=\frac{-2-2\sqrt{97}}{24} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(2)+2\sqrt{97}}{2*12}=\frac{-2+2\sqrt{97}}{24} $

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