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3x в квадрате-5x-22>0
2x в квадрате+3x+8<0
x в квадрате<81-
Предмет:
Алгебра -
Автор:
ashlynnriz5 - 5 лет назад
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Ответы 1
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3x² - 5x - 22 > 0(x+2)(3x-11) > 0x < -2x > 11/3Ответ: (-∞; -2) ∪ (11/3; +∞)2x² + 3x + 8 < 0D < 0 ⇒ нулей нет2x² + 3x + 8 > 0 ⇒ нет решенийx² < 81x > 9x > -9Ответ: (-9; 9)
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Автор:
carrot - 5 лет назад
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