3х×2-7х+4=0
6х-7х=-4
-1х=-4
х=-4:(-1)
х=4
Д=
Ответ: 1, 1 1/3
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3х×2-7х+4=0
6х-7х=-4
-1х=-4
х=-4:(-1)
х=4
Д=
Ответ: 1, 1 1/3