TeX Quellcode:

\begin{array}{rclcl} x^2-6x-112 &=& 0 \cr x_{1,2} &=& 3\pm\sqrt{3^2+112} \cr &=& 3\pm\sqrt{121} \cr \cr x_1 &=& 3+11 = 14 \cr x_2 &=& 3-11 = -8 \end{array}