$\displaystyle m\in\left(-\infty, \frac{2}{5} \right)$\displaystyle m\in\left(-\infty, \frac{2}{5} \right)

$m\in\left(-\infty,1\right)$m\in\left(-\infty,1\right)

$\displaystyle m\in\left( \frac{2}{5},+\infty \right)$\displaystyle m\in\left( \frac{2}{5},+\infty \right)

$m\in\left(1,+\infty\right)$m\in\left(1,+\infty\right)