Question

a² + b² = ?
explain in details​

Answer 1

Answer:

(a + b) (a - b)

Thanks

Answer 2

Answer:

$\rm (a+b)^2-2ab$

Step-by-step explanation:

We know that,

$\boxed{ \rm (a+b)^2= a^2 + b^2 +2ab}$

$\rm \implies (a+b)^2-2ab= a^2 + b^2$

$\rm \implies a^2 + b^2=(a+b)^2-2ab$