Предмет: Алгебра, автор: berduginmaksim3

xy+x-y-1 разложи на множители

Ответы

Автор ответа: Namib

1

$xy + x - y - 1 = \\ = x(y + 1) - (y + 1) = \\ = (x - 1)(y + 1)$

berduginmaksim3: сп

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