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Lirrick007
@Lirrick007
August 2022
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корень из x^2-x+1 = корень из 2x^2-1
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RDArty
Возведём в квадрат обе части и получим:
x^2-x+1=2x^2-1
-x^2-x+2=0
x^2+x-2=0
По Виету:
х1+х2=-1
х1*х2=-2
х1=-2
х2=1
1 votes
Thanks 2
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Answers & Comments
x^2-x+1=2x^2-1
-x^2-x+2=0
x^2+x-2=0
По Виету:
х1+х2=-1
х1*х2=-2
х1=-2
х2=1