TeX Quellcode:

\begin{array}{crclll} & z^3+3z &\neq & 0 \\& z\left(z^2+3\right) &\neq & 0\\\text{Faktor 1:} & z &\neq & 0\\\\\text{Faktor 2:} & z^2+3 &\neq & 0 &\vert & -3\\& z^2 &\neq & -3 &\vert & \pm\sqrt{}\\& z &\neq & \sqrt{-3}\end{array}