4500=180x^2

Solution for 4500=180x^2 equation:

4500=180x^2

We move all terms to the left:

4500-(180x^2)=0

a = -180; b = 0; c = +4500;
Δ = b2-4ac
Δ = 02-4·(-180)·4500
Δ = 3240000
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{3240000}=1800$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-1800}{2*-180}=\frac{-1800}{-360}
=+5
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+1800}{2*-180}=\frac{1800}{-360}
=-5
$