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danil376
@danil376
July 2022
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3x^2-5x<2 решить неравенство
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Checov7400
3х²-5х-2<0
3х²-5х-2=0
D=25+24=49=7²
х1=(5+7)/6=2
х2=(5-7)/2=-1
(х-2)(х+1)<0
------------ -1----------- 2--------- х
+ - +
х∈(-1;2)
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3х²-5х-2=0
D=25+24=49=7²
х1=(5+7)/6=2
х2=(5-7)/2=-1
(х-2)(х+1)<0
------------ -1----------- 2--------- х
+ - +
х∈(-1;2)