\(ĐK:\dfrac{x-2}{x+3}\ge0\Leftrightarrow\left[{}\begin{matrix}\left\{{}\begin{matrix}x-2\ge0\\x+3>0\end{matrix}\right.\\\left\{{}\begin{matrix}x-2\le0\\x+3< 0\end{matrix}\right.\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x\ge2\\x< -3\end{matrix}\right.\)