Предмет: Алгебра, автор: uugvb

помогите пожалуйста!!!

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Автор ответа: Аноним

1

$2x(y-z)-v(z-y)=2x(y-z)-v(-(y-z))=2x(y-z)+v(y-z)=(y-z)(2x+v)$

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