TeX Quellcode:

\begin{array}{rclcl} 0 &=& 3x^2-6x-1 &\vert& :3 \cr 0 &=& x^2-2x-\dfrac{1}{3} &\vert& \text{p-q-Formel} \cr\cr x_{1,2} &=& 1\pm \sqrt{(-1)^2+\dfrac{1}{3}} \cr\cr x_1 &=& 1+\sqrt{\dfrac{4}{3}} \approx 2{,}15 \cr\cr x_2 &=& 1-\sqrt{\dfrac{4}{3}} \approx -0{,}15 \end{array}