$${ \left( { x }^{ 2 } + \frac{ y2 }{ 2 } \right) }^{ 3 }$$
$\frac{\left(2x^{2}+y_{2}\right)^{3}}{8}$
$\frac{3\left(xy_{2}\right)^{2}}{4}+x^{6}+\frac{3y_{2}x^{4}}{2}+\frac{y_{2}^{3}}{8}$
