Предмет: Алгебра, автор: pro10054

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Автор ответа: nat59gut81

0

Ответ:

Объяснение: 10=1+9

x^2-2x+1+y^2+6y+9=0 (x-1)^2+(y+3)^2=0 x=1 y= -3

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