Theo đề, ta có:
\(\left\{{}\begin{matrix}2\left(m-m^2\right)+m-2=6m-16\\6-m^2+m-m^3=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}-m^2+3m-2=6m-16\\-m^3-m^2+m+6=0\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}-m^2-3m+14=0\\-m^3-m^2+m+6=0\end{matrix}\right.\Leftrightarrow m\in\varnothing\)