TeX Quellcode:

\begin{array}{rclcl} 120 &=& \dfrac{2}{9}x^6-42 &\vert& -\dfrac{2}{9}x^6-120 \cr -\dfrac{2}{9}x^6 &=& -162 &\vert& :\left(-\dfrac{2}{9}\right) \cr x^6 &=& 729 &\vert& \pm\sqrt[6]{} \cr x_{1,2} &=& \pm\sqrt[6]{729} \cr\cr x_1 &=& 3 \cr x_2 &=& -3 \cr\cr \mathbb{L} &=& \{-3;3\} \end{array}