$$( \frac{ 3 }{ 2 } { x }^{ 3 } - \frac{ 2 }{ 3 } { x }^{ 2 } +x- \frac{ 1 }{ 2 } )(x+ \frac{ 2 }{ 3 } )$$
$\frac{3x^{4}}{2}+\frac{x^{3}}{3}+\frac{5x^{2}}{9}+\frac{x}{6}-\frac{1}{3}$
$\frac{3x^{4}}{2}+\frac{x^{3}}{3}+\frac{5x^{2}}{9}+\frac{x}{6}-\frac{1}{3}$