Question

(a+b) ka Square and (a-b) whole ka square

Answer 1

$a {}^{2} + {b}^{2} + 2ab$
This is the formula of
$(a + b) {}^{2}$
Now
$a {}^{2} + b {}^{2} - 2ab$
This is the formula of
$(a - b) {}^{2}$