TeX Quellcode:

\begin{array}{rclll} x^3+3 &\geq& 0 &\vert& -3 \\x^3 &\geq& -3 &\vert& \sqrt[3]{} \\x &\geq& \sqrt[3]{-3}\\x &\geq& -\sqrt[3]{\vert -3\vert}\end{array}