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lovden
@lovden
July 2022
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7 деленное на 2х +9 из этой дроби -6 =5х
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Checov7400
7/(2Х+9) -6=5Х 7-6(2Х+9)=5Х(2Х+9)
7-12Х-54=10Х²+45Х 10Х²+57Х+47=0
Х1,2=(-57+/-√3249-1880)/20=(-57+/-√1369)/20=(-57+/-37)/20
Х1=-94/20=-4,7 Х2=-1
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Answers & Comments
7-12Х-54=10Х²+45Х 10Х²+57Х+47=0
Х1,2=(-57+/-√3249-1880)/20=(-57+/-√1369)/20=(-57+/-37)/20
Х1=-94/20=-4,7 Х2=-1