97=x*x

Solution for 97=x*x equation:

97=x*x

We move all terms to the left:

97-(x*x)=0

We add all the numbers together, and all the variables

-(+x*x)+97=0

We get rid of parentheses

-x*x+97=0

Wy multiply elements

-1x^2+97=0

a = -1; b = 0; c = +97;
Δ = b2-4ac
Δ = 02-4·(-1)·97
Δ = 388
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:

$\sqrt{\Delta}=\sqrt{388}=\sqrt{4*97}=\sqrt{4}*\sqrt{97}=2\sqrt{97}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{97}}{2*-1}=\frac{0-2\sqrt{97}}{-2}
=-\frac{2\sqrt{97}}{-2}
=-\frac{\sqrt{97}}{-1}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{97}}{2*-1}=\frac{0+2\sqrt{97}}{-2}
=\frac{2\sqrt{97}}{-2}
=\frac{\sqrt{97}}{-1}
$