Предмет: Алгебра, автор: вова443344

выполните действие 2c(c-b)-(c-3)(c+3)=

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Автор ответа: Kattiks

0

$2c(c-b)-(c-3)(c+3)=2c^2-2bc-(c^2-9)=2c^2-2bc-c^2+9=$ $c^2-2bc+9$

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