TeX Quellcode:
\begin{array}{rclcl} x^2+6x+8 &=& 0 &\vert& \text{p-q-Formel} \cr x_{1,2} &=& -3\pm\sqrt{9-8} \cr\cr x_1 &=& -3+1 = -2 \cr x_2 &=& -3-1 = -4 \end{array}