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	Các bình luận về: Có bao nhiêu số nguyên \(y\) sao cho tồn tại \(x \in \left( {\frac{1}{{10}};4} \right)\) thỏa mãn \({2021^{2{x^2} + xy}} = (1 + xy){2021^{7x}}?\)	</title>
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