Предмет: Алгебра, автор: popowch2006

знайдіть всі корені квадратного тричшена :х2-8х-9

Ответы

Автор ответа: Smippy905

2

Ответ:

Вот.

Объяснение:

х2-8х-9

х2+х-9х-9

х(х+1)-9(х+1)

(х+1)(х-9)

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