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	Các bình luận về: Đề bài: Trong tất cả các cặp (x;y) thỏa mãn \({\log _{{x^2} + {y^2} + 2}}(4x + 4y &#8211; 4) \ge 1.\) Tìm m để tồn tại duy nhất cặp (x;y) sao cho \({x^2} + {y^2} + 2x &#8211; 2y + 2 &#8211; m = 0.\)	</title>
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	<description>Học toán, Đề thi toán, Sách giáo khoa Toán, trắc nghiệm Toán online</description>
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