Контрольные задания > Выполните умножение двучленов: (2c-1)(2c+1).

Вопрос:

Выполните умножение двучленов: (2c-1)(2c+1).

Ответ:

\[(2c - 1)(2c + 1) = (2c)^{2} - 1 =\]

\[= 4c^{2} - 1.\ \]

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