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maksimovalbert
@maksimovalbert
July 2022
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как решить уравнение 2/x-4 - x = -5
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MizoriesKun
2/(x-4) - x = -5 , почленно домножим на х-4
2-х(х-4)=-5(х-4)
2-х
²+4х =-5х+20
х²-9х+18=0
D=81- 72=9
x₁=(9+3)/2=6
x₂=(9-3)/2=3
1 votes
Thanks 1
maksimovalbert
и вот это https://znanija.com/task/26426174
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Answers & Comments
2-х(х-4)=-5(х-4)
2-х²+4х =-5х+20
х²-9х+18=0
D=81- 72=9
x₁=(9+3)/2=6
x₂=(9-3)/2=3