Correct. $\displaystyle{8}{m}{\left({3}{{m}}^{{2}}+{2}{m}+{1}\right)}={8}{m}{\left({3}{{m}}^{{2}}\right)}+{8}{m}{\left({2}{m}\right)}+{8}{m}{\left({1}\right)}={24}{{m}}^{{3}}+{16}{{m}}^{{2}}+{8}{m}\usepackage{cmbright}\Huge\$ . The coefficient of the $\displaystyle{{m}}^{{2}}\usepackage{cmbright}\Huge\$ term is 16.