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	Các bình luận về: Đề bài: Giải hệ phương trình $\begin{cases}6x^2\sqrt{x^3-6x+5}=(x^3+4)(x^2+2x-6)  ( 1) \\ x+\frac{2}{x}\geq 1+\frac{2}{x^2}                                               (2)\end{cases}$.	</title>
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