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Chepurina
@Chepurina
July 2022
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х(2х-4)-(3х+2)-5х=5+3х
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romanovalesya1
2х^2 -4х-3х-2-5х-5-3х=0
2х^2 -15х-7=0
д= 225+4×2×7=225+56=281
х12=(15+-√281)/4
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2х^2 -15х-7=0
д= 225+4×2×7=225+56=281
х12=(15+-√281)/4