TeX Quellcode:

\begin{array}{rclcl} 0 &=& \left(\dfrac{t+17}{\sqrt{2}}\right)^2 &\vert& \sqrt{} \cr\cr 0 &=& \dfrac{t+17}{\sqrt{2}} &\vert& \cdot \sqrt{2} \cr 0 &=& t+17 &\vert& -17 \cr t &=& -17 \end{array}