Ответ:
х(х-3)=х²-5х+4
х²-3х=х²-5х+4
х²-х²=-2х+4
2х+4=0
2х=-4
х=-4/2
х=-2
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Ответ:
х(х-3)=х²-5х+4
х²-3х=х²-5х+4
х²-х²=-2х+4
2х+4=0
2х=-4
х=-4/2
х=-2