TeX Quellcode:

\begin{array}{rcl} -d(-x) &=& - \left( 51 (-x)^4 - \dfrac{63}{5} (-x)^3 + 223 \right) \cr \cr &=& - \left( 51x^4 + \dfrac{63}{5} x^3 +223 \right) \cr \cr &=& -51x^4 - \dfrac{63}{5} x^3 -223 \cr \cr & \neq & d(x) \end{array}