Решите уравнение 3x^2+5x=0.

\[3x² + 5x = 0\]

\[x(3x + 5) = 0\]

\[x = 0\ \ \ \ \ \ \ \ \ \ 3x + 5 = 0\]

\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3x = - 5\]

\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x = - \frac{5}{2} = - 1\frac{2}{3}\]

\[Ответ:x = 0;\ x = - 1\frac{2}{3}.\]