TeX Quellcode:

\begin{array}{rclll} 25 &=& -\sqrt[4]{16-x^4}+17 &\vert & -17 \cr 8 &=& -\sqrt[4]{16-x^4} &\vert & ()^4 \cr 4096 &=& 16-x^4 &\vert & +x^4 -4.096 \cr x^4 &=& -4.080 &\vert & \pm\sqrt[4]{} \cr x &=& \pm\sqrt[4]{-4.080} \end{array}