TeX Quellcode:
\begin{array}{rcl} 3 \cdot \left(-\dfrac{5}{2}\right) \cdot \, \left(-4 \cdot \left(-\dfrac{5}{2}\right)-10\right) &=& \left(2-2 \, \cdot \left(-\dfrac{5}{2}\right)\right) \cdot \left(6 \cdot \left(-\dfrac{5}{2}\right)+15\right) \cr -\dfrac{15}{2} \cdot (10-10) &=& (2+5) \cdot (-15+15) \cr 0 &=& 0 \end{array}