Предмет: Математика, автор: Mayzee

Как это решить? (Дискретная математика)

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Автор ответа: Dedagenn

Ответ:

размещения:

[х(х-1)(х-2)(х-3)(х-4)+ х(х-1)(х-2)]/ х(х-1)(х-2)= (х-3)(х-4)+1==43,

х²-7х-30=0, решаем...

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