4(2x-1)x=6

Solution for 4(2x-1)x=6 equation:

4(2x-1)x=6

We move all terms to the left:

4(2x-1)x-(6)=0

We multiply parentheses

8x^2-4x-6=0

a = 8; b = -4; c = -6;
Δ = b2-4ac
Δ = -42-4·8·(-6)
Δ = 208
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:

$\sqrt{\Delta}=\sqrt{208}=\sqrt{16*13}=\sqrt{16}*\sqrt{13}=4\sqrt{13}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-4\sqrt{13}}{2*8}=\frac{4-4\sqrt{13}}{16}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+4\sqrt{13}}{2*8}=\frac{4+4\sqrt{13}}{16}
$