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Ann169
@Ann169
July 2022
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Решите неравенство 2(х-7)(х+8)>=0
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ехуеху
Метод интервалов.
2(x-7)(x+8)>=0
+ + + [-8] - - - - - [7] + + + +
x Є (-беск,-8]U[7,беск)
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NNNLLL54
Verified answer
2(х-7)>0 х+8>0
2х-14>0 x>-8
2х>14
х>7
Ответ: (7; +бесконеч)
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Answers & Comments
2(x-7)(x+8)>=0
+ + + [-8] - - - - - [7] + + + +
x Є (-беск,-8]U[7,беск)
Verified answer
2(х-7)>0 х+8>02х-14>0 x>-8
2х>14
х>7
Ответ: (7; +бесконеч)