\begin{equation}5x-5y\end{equation}

\begin{equation}x^{2}+8xy\end{equation}

\begin{equation}3x^{3}+18\end{equation}

\begin{equation}4x^{3}+14x^{2}\end{equation}

\begin{equation}9x^{3}y^{2}+90xy^{4}\end{equation}

\begin{equation}12x^{4}y^{3}-8x^{2}y^{4}\end{equation}

\begin{equation}4x^{2}y+28y\end{equation}

\begin{equation}18x^{3}-60x^{2}\end{equation}

\begin{equation}90x^{4}+70x^{2}\end{equation}

\begin{equation}35x^{2}+35y^{5}\end{equation}

\begin{equation}(-27)x^{3}+9x\end{equation}

\begin{equation}12y^{3}z+16x^{2}y\end{equation}

\begin{equation}x^{2}+6x\end{equation}

\begin{equation}6x^{3}+30\end{equation}

\begin{equation}10xy+10\end{equation}

\begin{equation}(-50)x^{3}+40x^{4}\end{equation}

\begin{equation}(-9)x^{8}y^{4}+5x^{6}y\end{equation}

\begin{equation}16xy^{2}+56y\end{equation}

\begin{equation}24x^{2}+36x^{3}\end{equation}

\begin{equation}(-54)x^{5}+18x\end{equation}

\begin{equation}20x^{4}+36x^{3}+4x^{2}\end{equation}