18000=28000(x)^2

Solution for 18000=28000(x)^2 equation:

18000=28000(x)^2

We move all terms to the left:

18000-(28000(x)^2)=0

determiningTheFunctionDomain
-28000x^2+18000=0

a = -28000; b = 0; c = +18000;
Δ = b2-4ac
Δ = 02-4·(-28000)·18000
Δ = 2016000000
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:

$\sqrt{\Delta}=\sqrt{2016000000}=\sqrt{144000000*14}=\sqrt{144000000}*\sqrt{14}=12000\sqrt{14}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-12000\sqrt{14}}{2*-28000}=\frac{0-12000\sqrt{14}}{-56000}
=-\frac{12000\sqrt{14}}{-56000}
=-\frac{3\sqrt{14}}{-14}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+12000\sqrt{14}}{2*-28000}=\frac{0+12000\sqrt{14}}{-56000}
=\frac{12000\sqrt{14}}{-56000}
=\frac{3\sqrt{14}}{-14}
$