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koyushevigor
@koyushevigor
July 2022
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Помогите пожалуйста с алгеброй
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vikashum1
1) х^2-3х+2/2-х=0 х≠2
х^2-х-2х+2/-(х-2)=0
х(х-1)-2(х-1)/-(х-2)=0
(х-1)*(-1)=0
-х+1=0
-х=-1
х=1, х≠-2
Ответ: х=1
2) х+4=5/х х≠0
(х+4)х-5=0
х^2+4х-5=0
х^2+5х-х-5=0
х(х+5)-(х+5)=0
(х+5)(х-1)=0
х+5=0
х-1=0
х=-5
х=1 х≠0
Ответ: х1=-5; х2=1
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Answers & Comments
х^2-х-2х+2/-(х-2)=0
х(х-1)-2(х-1)/-(х-2)=0
(х-1)*(-1)=0
-х+1=0
-х=-1
х=1, х≠-2
Ответ: х=1
2) х+4=5/х х≠0
(х+4)х-5=0
х^2+4х-5=0
х^2+5х-х-5=0
х(х+5)-(х+5)=0
(х+5)(х-1)=0
х+5=0
х-1=0
х=-5
х=1 х≠0
Ответ: х1=-5; х2=1