ĐKXĐ: \(\left\{{}\begin{matrix}x\ne0\\x+2\ge0\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}x\ne0\\x\ge-2\end{matrix}\right.\)
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ĐKXĐ: \(\left\{{}\begin{matrix}x\ne0\\x+2\ge0\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}x\ne0\\x\ge-2\end{matrix}\right.\)