Incorrect. Remember that polynomials in the form $\displaystyle{{a}}^{{2}}+{2}{a}{b}+{{b}}^{{2}}\usepackage{cmbright}\Huge\$ represent the square of a sum, polynomials in the form $\displaystyle{{a}}^{{2}}-{2}{a}{b}+{{b}}^{{2}}\usepackage{cmbright}\Huge\$ represent the square of a difference, and polynomials in the form $\displaystyle{{a}}^{{2}}-{{b}}^{{2}}\usepackage{cmbright}\Huge\$ represent the product of a sum and a difference.