Предмет: Алгебра, автор: bogdankhudyako

приведите подобные слагаемые они отмечены синими чёрточками

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Автор ответа: MistaB

(a−2)·(a²+2a+2²) =

= a³+2a²+2²a−2a²−2²a−2³ =

= a³−2³

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