TeX Quellcode:

\begin{array}{rclll} f'(x) &=& \left(\dfrac{x}{5}-8\right)e^{0{,}1x^2-8x-6{,}3} \cr \cr 0 &=& \left(\dfrac{x}{5}-8\right)e^{0{,}1x^2-8x-6{,}3} &\vert & :e^{0{,}1x^2-8x-6{,}3} \cr \cr 0 &=& \dfrac{x}{5}-8 &\vert & -\dfrac{x}{5} \cr -\dfrac{x}{5} &=& -8 &\vert & \cdot (-5) \cr x &=& 40 \end{array}