TeX Quellcode:

\begin{array}{rclcl} \dfrac{2}{3}x^2+\dfrac{289}{3} &=& 16x &\vert& -16x \cr \dfrac{2}{3}x^2-16x+\dfrac{289}{3} &=& 0 &\vert& : \dfrac{2}{3} \cr x^2-24x+\dfrac{289}{2} &=& 0 &\vert& \text{p-q-Formel} \cr x_{1,2} &=& 12 \pm \sqrt{144-\dfrac{289}{2}} \cr &=& 12 \pm \sqrt{-\dfrac{1}{2}} \cr \cr x_1 &=& 12+\dfrac{i}{\sqrt{2}} \cr x_2 &=& 12-\dfrac{i}{\sqrt{2}} \cr \cr \mathbb{L} &=& \left\{12+\dfrac{i}{\sqrt{2}} \; ; \; 12-\dfrac{i}{\sqrt{2}}\right\}\end{array}