x*10x=2000

Solution for x*10x=2000 equation:

x*10x=2000

We move all terms to the left:

x*10x-(2000)=0

Wy multiply elements

10x^2-2000=0

a = 10; b = 0; c = -2000;
Δ = b2-4ac
Δ = 02-4·10·(-2000)
Δ = 80000
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:

$\sqrt{\Delta}=\sqrt{80000}=\sqrt{40000*2}=\sqrt{40000}*\sqrt{2}=200\sqrt{2}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-200\sqrt{2}}{2*10}=\frac{0-200\sqrt{2}}{20}
=-\frac{200\sqrt{2}}{20}
=-10\sqrt{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+200\sqrt{2}}{2*10}=\frac{0+200\sqrt{2}}{20}
=\frac{200\sqrt{2}}{20}
=10\sqrt{2}
$