The volume of a cube is found using the formula,
[tex]V=s^3[/tex]Where
V is the volume
s is the side length
Given
[tex]s=2n^6[/tex]Plugging into the formula,
[tex]\begin{gathered} V=s^3 \\ V=(2n^6)^3 \\ V=2^3n^{6\times3} \\ V=8n^{18} \end{gathered}[/tex]Answer[tex]8n^{18}\text{ cubic units}[/tex]