Предмет: Алгебра, автор: dimon090

Решите неравенство
9х^2-2х-8<8x^2

Ответы

Автор ответа: ma220299
0
9x^2-8x^2-2x-8<0
x^2-2x-8<0
D=4+32=36
x=(2+-6)/2
x1=4         x2=-2
Ответ: (-2;4)
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Rocks from Space
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