Question

hey , what's the formula of (a+b)2 and (a-b)2



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Answer 1

(a+b)2 = a2 + 2ab + b2

(a – b)2 = a2 – 2ab + b2

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Answer 2

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

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