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Wzory skróconego mnożenia:
(a-b)² = a² - 2ab + b²
(a+b)² = a² + 2ab + b²
(a+b)(a-b) = a² - b²
(a-b)³ = a³ - 3a²b + 3ab² - b³
(a+b)³ = a³ + 3a²b + 3ab² + b³