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Оленька6утова
@Оленька6утова
July 2022
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х^-2=4х+3
решите, пожалуйста)
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Pasha284
х^-2=4х+3
-4х+1/х=3
-4х+1/х=3
-4х^2+1
----------
= 3
х
-4х^2+1=3х
-4х^2-3х+1=0
4х^2+3х-1=0
D=3^2-4*4*(-1)=9+16=25
х1= -1
х2=0,25
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Answers & Comments
-4х+1/х=3
-4х+1/х=3
-4х^2+1
---------- = 3
х
-4х^2+1=3х
-4х^2-3х+1=0
4х^2+3х-1=0
D=3^2-4*4*(-1)=9+16=25
х1= -1
х2=0,25