TeX Quellcode:

\begin{array}{rclll} \dfrac{1}{b^3+5b}+2b &=& 0 &\vert & \cdot \left(b^3+5b\right)\\\\1+2b\left(b^3+5b\right) &=& 0\\2\left(b^2\right)^2+10b^2+1 &=& 0 \\\end{array}