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	Các bình luận về: Cho các số thực dương \(x,y\) thỏa mãn \({2020^{2019\left( {{x^2} &#8211; y + 4} \right)}} = \frac{{4x + y}}{{{{\left( {x + 2} \right)}^2}}}\). Tìm giá trị nhỏ nhất của biểu thức \(P = y &#8211; 2x\).	</title>
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