TeX Quellcode:

\begin{array}{rrclcl}\text{Faktor 2:} & x^2-\pi^2-kx^2+k^2\pi^2 &=& 0 \cr & x^2-kx^2-\pi^2+k^2\pi^2 &=& 0 \cr & \left(1-k\right)x^2-(1-k^2)\pi^2 &=& 0 \\& \left(1-k\right)x^2-\left(1-k\right)\left(1+k\right)\pi^2 &=& 0 \\& (1-k)\left[x^2-(1+k)\pi^2\right] &=& 0 \end{array}