TeX Quellcode:

\begin{array}{rclcl rclcl}\text{1. Fall} & & & & & \text{2. Fall} \cr-111 &=& x^3 -138 &\vert& +138 & -111 &=& -x^3 -138 &\vert& +138 \cr 27 &=& x^3 &\vert& \sqrt[3]{} & 27 &=& -x^3 &\vert& \cdot (-1) \cr 3 &=& x_2 & & & -27 &=& x^3 &\vert& \sqrt[3]{} \cr & & & & & -3 &=& x_3\end{array}