TeX Quellcode:

\begin{array}{rrclll} & (x+1)(x-4) &=& 0 \cr\cr \text{Faktor 1:} & x_1+1 &=& 0 &\vert& -1 \cr & x_1 &=& -1 \cr\cr\text{Faktor 2:} & x_2-4 &=& 0 &\vert& +4 \cr& x_2 &=& 4 \cr\cr & \mathbb{L} &=& \{-1;4\}\end{array}