Предмет: Алгебра, автор: УчИлКаcon

ПРЕОБРАЗУЙТЕ В МНОГОЧЛЕН ( b - 3c ) ( b + 3c ) - ( c+ 2b) ( 2b - c )

Ответы

Автор ответа: Юленька194

( b - 3c ) ( b + 3c ) - ( c+ 2b) ( 2b - c ) = b² -9c² -4b² +c² = -3b² -8c²

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