3x(x-2)=6x^2-8x

Solution for 3x(x-2)=6x^2-8x equation:

3x(x-2)=6x^2-8x

We move all terms to the left:

3x(x-2)-(6x^2-8x)=0

We multiply parentheses

3x^2-6x-(6x^2-8x)=0

We get rid of parentheses

3x^2-6x^2-6x+8x=0

We add all the numbers together, and all the variables

-3x^2+2x=0

a = -3; b = 2; c = 0;
Δ = b2-4ac
Δ = 22-4·(-3)·0
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(2)-2}{2*-3}=\frac{-4}{-6}
=2/3
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(2)+2}{2*-3}=\frac{0}{-6}
=0
$