Предмет: Алгебра, автор: Манашева

решите неравенство (2.5-х)(1/3+х)(х+1)> или равно 0

Ответы

Автор ответа: sedinalana

x=2,5 x=-1/3 x=-1
+ _ + _
---------------(-1)---------------(-1/3)-------(2,5)------------
x∈(-∞;-4) U (-1/3;2,5)

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