a2 + b2 Formula with Example

Math Formula
a² + b² = (a+b)² + 2ab

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Example

Solve this equation 2² + 5³ ?

2² = a²
5³ = b²

So use a² + b² = (a+b)² + 2ab formula

2^{2 +} 5³ = (2+5)² + 2x2x5
= (7)² + 20
= 7×7 + 20
= 49 + 20
= 69 Answer