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nikitadobryak1
@nikitadobryak1
August 2022
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решите уравнение
(х+1)(х+2)-х^2=5х+4
(х+1)^2=х^2+1
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kdid
(х+1)(х+2)-х^2=5х+4
х²+2х+х+2-х²=5х+4
3х+2=5х+4
3х-5х=4-2
-2х=2
х=2/(-2)
х=-1
(х+1)^2=х^2+1
х
²+2х+1=х²+1
х²+2х-х²=1-1
2х=0
х=0/2
х=0
1 votes
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Answers & Comments
х²+2х+х+2-х²=5х+4
3х+2=5х+4
3х-5х=4-2
-2х=2
х=2/(-2)
х=-1
(х+1)^2=х^2+1
х²+2х+1=х²+1
х²+2х-х²=1-1
2х=0
х=0/2
х=0