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huongtranguyen00
2 năm trước
) Tìm các cặp số nguyên (x, y) thỏa mãn: $2x^{2}$ + $2y^{2}$ + $3x^{}$ - $6y^{}$ =$5xy^{}$ - $7^{}$ Giúp mk với đang cần gấp ạ!
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