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\begin{document}


\begin{center}\section*{\textcolor{red}{Accompagnement personnalisé \no 13 (factorisations) }}\end{center}




\begin{multicols}{2}
\setlength{\columnseprule}{1pt}
\setlength{\columnsep}{2 cm}

\subsection{}

\begin{enumerate}[$A(x)=$]
\bigskip

\item $(2x-2)(2x+3)+(2x-2)(5-x)$

\bigskip

\item $5x^2+3x$

\bigskip

\item $x^2+x$

\bigskip

\item $5(x+4)+x(x+4)$

\bigskip

\item $7x(2-3x)-(2-3x)(x+4)$

\bigskip

\item $x^2-x$

\bigskip

\item $(x+2)-(x+2)(4x+3)$

\bigskip

\item $(x+1)^2+5(x+1)$
\end{enumerate}

\columnbreak


\subsection{}
Factoriser :

\begin{enumerate}[a)]
\bigskip

\item $2t(t+3)-5t$

\bigskip

\item $(y+2)(y-7)+16(y-7)$

\bigskip

\item $5a^3-8a$

\bigskip

\item $2(t-5)^2+8t(t-5)$
\end{enumerate}


\end{multicols}


%%%%%%%%%%%%%%%%%%
\setcounter{subsection}{0}
\vspace{1cm}


\begin{center}\section*{\textcolor{red}{Accompagnement personnalisé \no 13 (factorisations) }}\end{center}




\begin{multicols}{2}
\setlength{\columnseprule}{1pt}
\setlength{\columnsep}{2 cm}

\subsection{}

\begin{enumerate}[$A(x)=$]
\bigskip

\item $(2x-2)(2x+3)+(2x-2)(5-x)$

\bigskip

\item $5x^2+3x$

\bigskip

\item $x^2+x$

\bigskip

\item $5(x+4)+x(x+4)$

\bigskip

\item $7x(2-3x)-(2-3x)(x+4)$

\bigskip

\item $x^2-x$

\bigskip

\item $(x+2)-(x+2)(4x+3)$

\bigskip

\item $(x+1)^2+5(x+1)$
\end{enumerate}

\columnbreak


\subsection{}
Factoriser :

\begin{enumerate}[a)]
\bigskip

\item $2t(t+3)-5t$

\bigskip

\item $(y+2)(y-7)+16(y-7)$

\bigskip

\item $5a^3-8a$

\bigskip

\item $2(t-5)^2+8t(t-5)$
\end{enumerate}


\end{multicols}

\label{fin}
\end{document}  