You see the conceptual part of this.............in many different parts of math........like the Pythagorean theorem......................................two terms on one side...................one on the other............the one on the other has a 2 in it......................broken down even there is are more.....1/2s.........................

Other forms of the theorem

As pointed out in the introduction, if c denotes the length of the hypotenuse and a and b denote the lengths of the other two sides, the Pythagorean theorem can be expressed as the Pythagorean equation:

${\displaystyle a^{2}+b^{2}=c^{2}.}$

If the length of both a and b are known, then c can be calculated as

${\displaystyle c={\sqrt {a^{2}+b^{2}}}.}$