Question

$(a + b) {}^{2} - (a - b) {}^{2}$
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Answer 1

Answer:

=(a+b) ^2-(a-b) ^2

=(a+b) ^2-(a-b) ^2=[(a) ^2+(b) ^2+2ab] - [(a) ^2+(b) ^2-2ab]

=(a+b) ^2-(a-b) ^2=[(a) ^2+(b) ^2+2ab] - [(a) ^2+(b) ^2-2ab]=2ab+2ab

=(a+b) ^2-(a-b) ^2=[(a) ^2+(b) ^2+2ab] - [(a) ^2+(b) ^2-2ab]=2ab+2ab=4ab

Step-by-step explanation:

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Answer 2

Answer:

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