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dimon199999
@dimon199999
November 2021
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известно что -4<х<0.Оцените значение выражения -2х+1
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sangers1959
Verified answer
-4<x<0 x∈(-4;0)
-8<2x<0
8>-2x>0
9>-2x+1>1
(-2x+1)∈(1;9).
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dimon199999
не пойму объясни пожалуйста
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Answers & Comments
Verified answer
-4<x<0 x∈(-4;0)-8<2x<0
8>-2x>0
9>-2x+1>1
(-2x+1)∈(1;9).