TeX Quellcode:

\begin{array}{rclll}t+\sqrt{2t+5} &=& 0 &\vert & -t \\\sqrt{2t+5} &=& -t &\vert & \left(\right)^2 \\2t+5 &=& t^2 &\vert & -2t-5 \\t^2-2t-5 &=& 0 &\vert & \text{p-q-Formel} \\t_{1,2} &=& 1\pm\sqrt{(-1)^2+5} \\t_1 &=& 1+\sqrt{6} \approx 3{,}45 \\t_2 &=& 1-\sqrt{6} \approx -1{,}45\end{array}