TeX Quellcode:

\begin{array}{rclcl}0 &=& \dfrac{\sqrt{15x^3}}{\sqrt{5}}-\left(\sqrt{5}\right)^3 &\vert& +\left(\sqrt{5}\right)^3 \\\\ \left(\sqrt{5}\right)^3 &=& \dfrac{\sqrt{15x^3}}{\sqrt{5}} &\vert& \cdot\sqrt{5} \\\\ \left(\sqrt{5}\right)^4 &=& \sqrt{15x^3} \\\\25 &=& \sqrt{15x^3} &\vert& ()^2 \\\\625 &=& 15x^3 &\vert& :15 \\\\ \dfrac{125}{3} &=& x^3 &\vert& \sqrt[3]{} \\\\ \sqrt[3]{\dfrac{125}{3}} &=& x \in \mathbb{D}\end{array}