TeX Quellcode:

\begin{array}{rclcll} 25 &=& -x^2-24x+2 &\vert & -25 \cr 0 &=& -x^2-24x-23 &\vert & \cdot(-1) \cr 0 &=& x^2+24x+23 &\vert& \text{p-q-Formel} \cr x_{1,2} &=& -12 \pm \sqrt{12^2-23} \cr x_{1,2} &=& -12 \pm \sqrt{121} \cr\cr x_1 &=& -12+11 = -1 & \rightarrow \quad P_2(-1 \mid 25) \cr x_2 &=& -12-11 = - 23 & \rightarrow \quad P_3(-23 \mid 25) \end{array}