TeX Quellcode:
\begin{array}{rclcl} z^2-z+9 &=& 0 &\vert & \text{p-q-Formel}\\z_{1,2} &=& \dfrac{1}{2}\pm\sqrt{\left(-\dfrac{1}{2}\right)^2-9}\\z_{1,2} &=& \dfrac{1}{2}\pm\sqrt{-\dfrac{35}{4}}\end{array}