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\begin{center}\section*{\textcolor{red}{Contrôle sur 10}}\end{center}

Factoriser les expressions suivantes :

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\begin{enumerate}[\hspace{1cm}$A(x):$]
\item $(2x+3)(x+1)+(2x+3)(5x+4)$

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\item $(5x+2)(2x+3)-(5x+2)(7x+1)$

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

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\item $(3x+7)^2-81$
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\item $81x^2-90x+25$
\end{enumerate}


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