26^2+x^2=33^2

Solution for 26^2+x^2=33^2 equation:

26^2+x^2=33^2

We move all terms to the left:

26^2+x^2-(33^2)=0

We add all the numbers together, and all the variables

x^2-413=0

a = 1; b = 0; c = -413;
Δ = b2-4ac
Δ = 02-4·1·(-413)
Δ = 1652
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:

$\sqrt{\Delta}=\sqrt{1652}=\sqrt{4*413}=\sqrt{4}*\sqrt{413}=2\sqrt{413}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{413}}{2*1}=\frac{0-2\sqrt{413}}{2}
=-\frac{2\sqrt{413}}{2}
=-\sqrt{413}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{413}}{2*1}=\frac{0+2\sqrt{413}}{2}
=\frac{2\sqrt{413}}{2}
=\sqrt{413}
$