Предмет: Алгебра, автор: RChane

Тема неравенства.
Алгебра 9 класс
x^2-11x+30<=0

Ответы

Автор ответа: gal4enok007
0
Находим нули функции:
Х^2 -11х +30=0
По теореме Виета
Х1=6 х2=5
(+). (-). (+)
-------(5)---------(6)--------

Х€ [5;6]
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