\[9x^{2} - 6x = 0\]
\[9x\left( x - \frac{6}{9} \right) = 0\]
\[9x\left( x - \frac{2}{3} \right) = 0\]
\[1)\ 9x = 0\]
\[x = 0.\]
\[2)\ x - \frac{2}{3} = 0\]
\[x = \frac{2}{3}.\]
\[Ответ:x = 0;\ \ x = \frac{2}{3}.\]