TeX Quellcode:

\begin{array}{rclcll}u_1 =10^{x_1} &=& -\dfrac{1}{2}+\dfrac{\sqrt{41}}{2} &\vert& \lg() \\ \\x_1 &=& \lg \left(-\dfrac{1}{2}+\dfrac{\sqrt{41}}{2}\right)\approx 0{,}4316 \\ \\u_2 =10^{x_2} &=& -\dfrac{1}{2}-\dfrac{\sqrt{41}}{2}\end{array}