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Question		Answer
(a+b)^2 start learning		a2 + 2ab+ b2
(a-b)^2 start learning		a2-2ab+b2
a2-b2 start learning		(a-b)(a+b)
(a+b)3 start learning		a3 +3a^2b + 3ab2 +b3
(a-b)3 start learning		a3- 3a^2b + 3ab2 -b3
a3-b3 start learning		(a-b)(a2+ab+b2)
a3+b3 start learning		(a+b)(a2+ab+b2)

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