Correct. Multiplying $\displaystyle-{4}\cdot-{4}\cdot-{4}\usepackage{cmbright}\Huge\$ gives you -64, and $\displaystyle{{a}}^{{2}}\usepackage{cmbright}\Huge\$ raised to the power of 3 equals $\displaystyle{{a}}^{{6}}\usepackage{cmbright}\Huge\$ .