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Written on June 24, 2019
\newcommand{\QCM}[4]{#1\par
\begin{tabular}{@{} p{0.3\linewidth} p{0.3\linewidth} p{0.3\linewidth}}
\fbox{A} #2 & \fbox{B} #3 & \fbox{C} #4
\end{tabular}
}
\QCM{Si $x=-2-2$, alors}
{$x=0$}{$x=-4$}{$x=4$}