Предмет: Алгебра, автор: VlaDislavka01

Пожалуйста, помогите решить.
-49х2+14х-1≥0 (х2 - это х в кв.)
-3х2+х-2<0 (х2 - это х в кв.)

Ответы

Автор ответа: Raccoon25

0

-3х^2+х-2<0
Д=1-24<0
-23<0
-49х^2+14х-1≥0
Д=196-196=0
0≥0

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