дам 50 баллов
нужно решить 5 примеров по алгебре
типа упростить, примерно так:
х²-5х+6
х²-5х+6=(х²-2х*5/2+25/4)-25/4+6=(х-5/2)²-1/4
(х-5/2)²-1/4=0
(х-5/2)²=1/4
х-5/2=1/2 х-5/2=-1/2
х=3 х=-2​
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