\[11x² - x = 0\]
\[x(11x - 1) = 0\]
\[x = 0\ \ \ или\ \ \ 11x = 1\ \ \]
\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x = \frac{1}{11}\]
\[Ответ:x = 0;x = \frac{1}{11}.\]