TeX Quellcode:

\begin{array}{rclcl} -43 &=& (-3+a)^2-6 &\vert & +43 \cr 0 &=& (3-a)^2+37 \cr 0 &=& a^2-6a+46 &\vert& \text{p-q-Formel} \cr a_{1,2} &=& 3 \pm \sqrt{(-3)^2-46} \cr a_{1,2} &=& 3 \pm \sqrt{-37}\end{array}