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luzanovasveta
@luzanovasveta
July 2022
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Решите систему уравнений у=х^2-2 у=-х
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ramit08
у=х^2-2
у=-х
х^2-2 =-х
х^2+х-2=0
D=1+8=9
x1=(-1+3)/2=1
x2=(-1-3)/2=-2
1 votes
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luzanovasveta
спасибо большое!
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Answers & Comments
у=-х
х^2-2 =-х
х^2+х-2=0
D=1+8=9
x1=(-1+3)/2=1
x2=(-1-3)/2=-2