TeX Quellcode:

\begin{array}{rclcl} \sqrt[4]{144x^2-192x+64} &=& \sqrt{-12x+8} &\vert& ()^4 \cr 144x^2-192x+64 &=& (-12x+8)^2 \cr 144x^2-192x+64 &=& 144x^2-192x+64 \cr 0 &=& 0 \cr\cr \mathbb{L} &=& \left]-\infty;\dfrac{2}{3}\right] \end{array}