x^2+x^2=12.7279220614

Solution for x^2+x^2=12.7279220614 equation:

x^2+x^2=12.7279220614

We move all terms to the left:

x^2+x^2-(12.7279220614)=0

We add all the numbers together, and all the variables

2x^2-12.7279220614=0

a = 2; b = 0; c = -12.7279220614;
Δ = b2-4ac
Δ = 02-4·2·(-12.7279220614)
Δ = 101.8233764912
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{101.8233764912}}{2*2}=\frac{0-\sqrt{101.8233764912}}{4}
=-\frac{\sqrt{}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{101.8233764912}}{2*2}=\frac{0+\sqrt{101.8233764912}}{4}
=\frac{\sqrt{}}{4}
$