TeX Quellcode:

\begin{array}{rclll} 144x^2-192x+64 &=& 0 &\vert & :144\\x^2-\dfrac{4}{3}x+\dfrac{4}{9} &=& 0 &\vert & \text{p-q-Formel}\\x_{1,2} &=& \dfrac{2}{3}\pm\sqrt{\left(-\dfrac{2}{3}\right)^2-\dfrac{4}{9}}\\x_{1,2} &=& \dfrac{2}{3}\pm0\\x_{1,2} &=& \dfrac{2}{3}\end{array}