1)х-1≠0
х≠1
2) х+3≠0
х≠ -3
3) х(х-4)≠0
х1≠0
х-4≠0
х2≠4
4)х²+2х≠0
х(х+2)≠0
х1≠0,
х+2≠0
х2≠ -2
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Verified answer
1)х-1≠0
х≠1
2) х+3≠0
х≠ -3
3) х(х-4)≠0
х1≠0
х-4≠0
х2≠4
4)х²+2х≠0
х(х+2)≠0
х1≠0,
х+2≠0
х2≠ -2