Prove: square of M - square of N, 2Mn, square of M + square of N, (M and N are natural numbers, and M is greater than N and greater than 0) is the side length of right triangle

Prove: square of M - square of N, 2Mn, square of M + square of N, (M and N are natural numbers, and M is greater than N and greater than 0) is the side length of right triangle

(m²+n²)²-(m²-n²)²=(m²+n²+m²-n²)(m²+n²-m²+n²)=4m²n²=(2mn)²(m²+n²)²=(m²-n²)²+(2mn)²...