9.
设函数\(f\left(x\right)=\left(2-a\right)\ln x+ \dfrac{2a{x}^{2}+1}{x}\left(a < 0\right) \).
\((1)\)讨论函数\(f\left(x\right) \)在定义域内的单调性;
\((2)\)当\(a∈\left(-3,-2\right) \)时,任意\({x}_{1},{x}_{2}∈\left[1,3\right] \),\(\left(m+\ln 3\right)a-2\ln 3 > \left|f\left({x}_{1}\right)-f\left({x}_{2}\right)\right| \)恒成立,求实数\(m\)的取值范围.