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Анькаааааааааааааааа
@Анькаааааааааааааааа
August 2022
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Pешить систему уравнений x^2+xy+y^2=19
x+y=5
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pritvi2001
X=5-y из второго , подставим под первое , получим 25-10y+y^2+5y-y^2+y^2=19 , y^2-5y+6=0 , y=3 и y=2 ; (y=3 x=2) (y=2 x=3)
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