х²-6х+8<0
Д=√36-4×1×8=√36-32=4=2
х1=(6+2)/2=4
х2=(6-2)/2=2
Ответ: (2;4)
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х²-6х+8<0
Д=√36-4×1×8=√36-32=4=2
х1=(6+2)/2=4
х2=(6-2)/2=2
Ответ: (2;4)