5x^2>2x решите неравенство

$5x^2\ \textgreater \ 2x \\ 5x^2-2x\ \textgreater \ 0 \\ x(5x-2)\ \textgreater \ 0 \\ \left \{ {{x\ \textgreater \ 0} \atop {5x-2\ \textgreater \ 0}} \right. \left \{ {{x\ \textgreater \ 0} \atop {x\ \textgreater \ \frac{2}{5} }} \right. \\ \left \{ {{x\ \textless \ 0} \atop {5x-2\ \textless \ 0}} \right. \left \{ {{x\ \textless \ 0} \atop {x\ \textless \ \frac{2}{5} }} \right.$
x∈( $\frac{2}{5}$ ;+∞) $\\$
x∈(-∞;0)
x∈(-∞;0)∪(2/5;+∞)