TeX Quellcode:

\begin{array}{rclcl}16x^2-64 & < & -48x-120 &\vert& +120 \cr 16x^2+56 & < & -48x &\vert& +48x \cr 16x^2+48x+56 & < & 0 &\vert& :16 \cr x^2+3x+\dfrac{7}{2} & < & 0\end{array}