Question

a+b ka hole square kya hai​

Answer 1

$\huge{\sf{\orange{Answer}}}$

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

$\huge{\sf{\orange{Explanation}}}$

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

$(a + b)(a + b)$

Multiply the terms with each other.

$a(a + b) + b(a + b)$

${a}^{2} + ab + ab + {b}^{2}$

Add the common terms.

Answer=} ${a}^{2} + 2ab + {b}^{2}$