Разложите на множители трёхчлен x в квадрате +5x+4 .20
vseznaika29
2
07.10.2019 00:30
0
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1
д=25-4•1•4=25-16=9√Д=3
х1=5+3:2=4
х2=5-3:2=-1
ответ 4 и -1