10x^2=900

Solution for 10x^2=900 equation:

10x^2=900

We move all terms to the left:

10x^2-(900)=0

a = 10; b = 0; c = -900;
Δ = b2-4ac
Δ = 02-4·10·(-900)
Δ = 36000
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:

$\sqrt{\Delta}=\sqrt{36000}=\sqrt{3600*10}=\sqrt{3600}*\sqrt{10}=60\sqrt{10}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-60\sqrt{10}}{2*10}=\frac{0-60\sqrt{10}}{20}
=-\frac{60\sqrt{10}}{20}
=-3\sqrt{10}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+60\sqrt{10}}{2*10}=\frac{0+60\sqrt{10}}{20}
=\frac{60\sqrt{10}}{20}
=3\sqrt{10}
$