TeX Quellcode:

\begin{array}{rclll} x^2-3x+8 &\neq & 0 &\vert &\text{p-q-Formel}\\x_{1,2} &\neq & \dfrac{3}{2}\pm\sqrt{\left(\dfrac{3}{2}\right)^2-8}\\x_{1,2} &\neq & \dfrac{3}{2}\pm\sqrt{-\dfrac{23}{4}}\end{array}