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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 + a²b + ab² + b³
(a - b)³ =? start learning		= a³ - a²b + ab² - b³
a³ + b³ =? start learning		= (a + b)(a² + ab + b²)
a³ - b³ =? start learning		= (a - b)(a² + ab + b²)

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