Вычислите: -3*(2/3)^3.

\[- 3 \cdot \left( \frac{2}{3} \right)^{3} = - \frac{3{\cdot 2}^{3}}{3^{3}} = - \frac{8}{3^{3 - 1}} =\]

\[= - \frac{8}{3^{2}} = - \frac{8}{9}.\]