Incorrect. Can you identify any values for z that should be excluded from the domain? To find z, multiply both sides of the equation by the common denominator $\displaystyle{4}{{z}}^{{2}}-{1}\usepackage{cmbright}\Huge\$ (which can be factored as $\displaystyle{\left({2}{z}+{1}\right)}{\left({2}{z}-{1}\right)}\usepackage{cmbright}\Huge\$ ). Then solve the resulting polynomial equation for z.