\[- 8m^{2} + 24m - 16 < 0\ \ \ |\ :( - 8)\]
\[m^{2} - 3m + 2 > 0\]
\[m^{2} - 3m + 2 = 0\]
\[m_{1} + m_{2} = 3,\ \ m_{1} \cdot m_{2} = 2\]
\[m_{1} = 2,\ \ m_{2} = 1\]
\[Ответ:(2;\ + \infty).\]