Предмет: Алгебра, автор: ShustikovaAngelina

решите неравенства, алгебра 8 класс. 25 баллов

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Автор ответа: podolsckyroma2

Ответ на 4-ый пример:
4x^2-9x > 0
x(4x-9) > 0
x > 0 x > 0
4x-9 > 0 x > 9/4

x принадлежит <9/4; + бесконечность>
x принадлежит < - бесконечность; 0>

x принадлежит < - бесконечность; 0> U <9/4; + бесконечность>

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ShustikovaAngelina: спасибо!

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