\[\left\{ \begin{matrix} \frac{x}{(x - 5)^{2}} > 0 \\ 6x - x^{2} > 0 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix}
x > 0;\ \ x
eq 5 \\
x(x - 6) < 0 \\
\end{matrix} \right.\ \]
\[\left\{ \begin{matrix}
x > 0\text{\ \ \ \ \ \ \ \ } \\
x
eq 5\text{\ \ \ \ \ \ \ } \\
0 < x < 6 \\
\end{matrix} \right.\ \]
\[x \in (0;5) \cup (5;6).\]