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	Các bình luận về: . Có bao nhiêu cặp số nguyên \(\left( {x;y} \right)\) thỏa mãn bất phương trình \(\left( {{x^2} + {y^2} &#8211; 2x &#8211; 24} \right)\left[ {{{\log }_2}\left( {\frac{{{x^2} + {y^2}}}{{5x + 2y &#8211; 20}}} \right) + {x^2} + {y^2} &#8211; 20x &#8211; 8y + 78} \right] \le 0\).	</title>
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