Both $\displaystyle{2}{{x}}^{{2}}{y}{{z}}^{{2}}\usepackage{cmbright}\Huge\$ and $\displaystyle{{x}}^{{2}}{y}{{z}}^{{2}}\usepackage{cmbright}\Huge\$ are factors of $\displaystyle{4}{{x}}^{{2}}{{y}}^{{3}}{{z}}^{{2}}+{8}{{x}}^{{3}}{{y}}^{{2}}{{z}}^{{2}}-{10}{{x}}^{{3}}{y}{{z}}^{{3}}\usepackage{cmbright}\Huge\$ .