Решите неравенство: (x^2+3x)(2x-1)<=0.

\[\left( x^{2} + 3x \right)(2x - 1) \leq 0\]

\[2x(x + 3)\left( x - \frac{1}{2} \right) \leq \ 0\]

\[Ответ:( - \infty; - 3\rbrack \cup \lbrack 0;0,5\rbrack.\]