Question

(a^2+b^2) what about this how it came

Answer 1

Solution:-

given:-

(a^2+b^2)

a^2+b^2 = (a+b)^2-2ab

Answer 2

$a^{2} + b^{2} = ?$

We know about the algebraic identity -

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

$a^{2} +b^{2} = (a+b)^{2} - 2 ab$

hope it helps you.