a2 + b2 Formula with Example

Math Formula
a2 + b2 = (a+b)2 + 2ab

Example

Solve this equation 22 + 53 ?

22 = a2
53 = b2

So use a2 + b2 = (a+b)2 + 2ab formula

22 + 53 = (2+5)2 + 2x2x5
= (7)2 + 20
= 7×7 + 20
= 49 + 20
= 69 Answer

Information