14^2+9^2=c^2

Solution for 14^2+9^2=c^2 equation:

14^2+9^2=c^2

We move all terms to the left:

14^2+9^2-(c^2)=0

We add all the numbers together, and all the variables

-1c^2+277=0

a = -1; b = 0; c = +277;
Δ = b2-4ac
Δ = 02-4·(-1)·277
Δ = 1108
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{1108}=\sqrt{4*277}=\sqrt{4}*\sqrt{277}=2\sqrt{277}$
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{277}}{2*-1}=\frac{0-2\sqrt{277}}{-2}
=-\frac{2\sqrt{277}}{-2}
=-\frac{\sqrt{277}}{-1}
$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{277}}{2*-1}=\frac{0+2\sqrt{277}}{-2}
=\frac{2\sqrt{277}}{-2}
=\frac{\sqrt{277}}{-1}
$