TeX Quellcode:

\begin{array}{rclcl} 8y^2-32 &\leq& 0 &\vert& +32 \\ 8y^2 &\leq& 32 &\vert& :8 \\ y^2 &\leq& 4 &\vert& \sqrt{} \\ \vert y \vert &\leq& 2 \\\\\mathbb{L} &=& [-2;2]\end{array}