x*2x=20.48

Solution for x*2x=20.48 equation:

x*2x=20.48

We move all terms to the left:

x*2x-(20.48)=0

We add all the numbers together, and all the variables

x*2x-20.48=0

Wy multiply elements

2x^2-20.48=0

a = 2; b = 0; c = -20.48;
Δ = b2-4ac
Δ = 02-4·2·(-20.48)
Δ = 163.84
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{163.84}}{2*2}=\frac{0-\sqrt{163.84}}{4}
=-\frac{\sqrt{}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{163.84}}{2*2}=\frac{0+\sqrt{163.84}}{4}
=\frac{\sqrt{}}{4}
$