5x-2=x(2x-1)

Solution for 5x-2=x(2x-1) equation:

5x-2=x(2x-1)

We move all terms to the left:

5x-2-(x(2x-1))=0


We calculate terms in parentheses: -(x(2x-1)), so:

x(2x-1)

We multiply parentheses

2x^2-1x

Back to the equation:

-(2x^2-1x)


We get rid of parentheses

-2x^2+5x+1x-2=0

We add all the numbers together, and all the variables

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

a = -2; b = 6; c = -2;
Δ = b2-4ac
Δ = 62-4·(-2)·(-2)
Δ = 20
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:

$\sqrt{\Delta}=\sqrt{20}=\sqrt{4*5}=\sqrt{4}*\sqrt{5}=2\sqrt{5}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{5}}{2*-2}=\frac{-6-2\sqrt{5}}{-4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{5}}{2*-2}=\frac{-6+2\sqrt{5}}{-4}
$