Question

$verify \: (a - b) { }^{2} = a {}^{2} - 2ab + b {}^{2}$
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Answer 1

$\boxed{\boxed{\underline{\huge{\green{Answer}}}}}$

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

Hence

$\boxed{\boxed{\underline{\huge{\pink{Verified}}}}}$