TeX Quellcode:

\begin{array}{rclclcl}z_2 &=& x^2 &=& \dfrac{8}{5} &\vert& \pm\sqrt{} \cr & & x_{2,3} &=& \pm\sqrt{\dfrac{8}{5}} \approx \pm 1{,}26 & & \cr\cr z_3 &=& x^2 &=& -2 &\vert& \pm\sqrt{} \cr & & x_{4,5} &=& \pm\sqrt{-2}\end{array}