These are the solutions to the equation $\displaystyle{{x}}^{{2}}-{1}={0}\usepackage{cmbright}\Huge\$ . Since the denominators of the given equation are equal, in order to solve the equation you must set the numerators equal and solve that equation: $\displaystyle{{x}}^{{2}}-{1}={24}\usepackage{cmbright}\Huge\$ .