625=3x^2

Solution for 625=3x^2 equation:

625=3x^2

We move all terms to the left:

625-(3x^2)=0

a = -3; b = 0; c = +625;
Δ = b2-4ac
Δ = 02-4·(-3)·625
Δ = 7500
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:

$\sqrt{\Delta}=\sqrt{7500}=\sqrt{2500*3}=\sqrt{2500}*\sqrt{3}=50\sqrt{3}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-50\sqrt{3}}{2*-3}=\frac{0-50\sqrt{3}}{-6}
=-\frac{50\sqrt{3}}{-6}
=-\frac{25\sqrt{3}}{-3}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+50\sqrt{3}}{2*-3}=\frac{0+50\sqrt{3}}{-6}
=\frac{50\sqrt{3}}{-6}
=\frac{25\sqrt{3}}{-3}
$