Question

a plus b ka whole square barabar

Answer 1

(a+b)² = a² + b²+2ab

Answer 2

$<marquee>$
$\huge\mathfrak{Answer \ :-}$

$\mathsf{(a + b)^2 \ :-}$

$\mathsf{= \ a^2 + b^2 + 2ab}$

$\huge\mathbb{Hope \ this \ helps.}$