Änderungen

\begin{eqnarray}

\begin{eqnarray}

(fg) & = & 5x^{4}2x^{3} \\

(fg) & = & 5x^{4}2x^{3} \\

f' & = & 20x^{3} g'= 6x^{2} \\

f' & = & 20x^{3} \qquad g'= 6x^{2} \\

(fg)' & = & 20x^{3}2x^{3}+5x^{4}6x^{2}=40x^{6}+30x^{6}=70x^{6}

(fg)' & = & 20x^{3}2x^{3}+5x^{4}6x^{2}=40x^{6}+30x^{6}=70x^{6}

\end{eqnarray}

\end{eqnarray}