Предмет: Алгебра, автор: c5rv6b879nmjk

Алгебра. 7 класс. Пожалуйста помогите как можно быстрее!!! Даю 45 баллов!!!!!!!

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Автор ответа: gozer10
0

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ответ во вложении .

Сначала раскрываем первые дужки по формуле, а вторые просто.

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