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Flatershay0
@Flatershay0
August 2022
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решите данные системы уравнений 1) х+у=6
ху=8
2)х-у=4
ху=-3
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mmakarova00
1.
х=6-у
ху=8
(6-у)*у=8
6у-у^2=8
-у^2+6у-8=0
Д=36-32=4=2
У1,2=-2; 4
х+у=6
х-2=6 х+4=6
х1=8 х2=2
2. по такому же принципу
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Answers & Comments
х=6-у
ху=8
(6-у)*у=8
6у-у^2=8
-у^2+6у-8=0
Д=36-32=4=2
У1,2=-2; 4
х+у=6
х-2=6 х+4=6
х1=8 х2=2
2. по такому же принципу