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	Các bình luận về: Đề bài: $1$. Giải phương trình: ${\log _2}(3x &#8211; 1) + \frac{1}{{{{\log }_{x + 3}}2}} = 2 + {\log _2}(x + 1)$$2$. Giải hệ phương trình:$\left\{ \begin{array}{l}x(x + 2)(2x + y) = 9\\{x^2} + 4x + y = 6\end{array} \right.$	</title>
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