TeX Quellcode:

\begin{array}{crclcl}& -6 &=& -7\left\vert x^2-x \right\vert-6 &\vert& +6 \cr& 0 &=& -7\left\vert x^2-x \right\vert &\vert& : (-7) \cr & 0 &=& \left\vert x^2-x \right\vert \cr & 0 &=& x(x-1) &\vert& \text{Satz vom Nullprodukt} \cr \text{Faktor 1:} & x_2 &=& 0 \cr\cr \text{Faktor 2:} & x-1 &=& 0 &\vert& +1 \cr & x_3 &=& 1\end{array}