\documentclass[a4paper,12pt,french]{article}
\linespread{1.2}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Définitions de la feuille d'exercices
\newcommand{\ch}{Le brevet 2011}
\newcommand{\Ch}{}	
\newcommand{\Cl}{207}	
\newcommand{\Annee}{2011-2012}	
\newcommand{\Int}{Interrogation n$^{\circ}$ 1}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%		Packages
%\usepackage[french,lined,boxed,commentsnumbered]{algorithm2e}

\input macro_final.tex
\geometry{verbose,letterpaper,tmargin=2cm,bmargin=2cm,lmargin=1.8cm,rmargin=1.8cm}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	Début
\begin{document}
 
\pagestyle{empty}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	Cadre jaune
\textbf{Nom : }$\dots\dots\dots\dots\dots$ \hskip10mm \textbf{Pr\'enom : }$\dots\dots\dots\dots\dots$  \hskip30mm Classe :$\dots\dots$\\
\Cj{\Int}


\Exop{
Développer puis réduire chaque expression :
$$A=(7x+1)^2 \qquad\qquad\qquad B=(3x+1)(3x-1) \qquad\qquad\qquad C=\left(\dfrac13 - \dfrac34a\right)^2$$
}

\vspace*{7cm}

\Exop{
Factoriser chacune des expressions suivantes :
$$D=3x^2-15x \qquad\qquad\qquad E=(3x-2)^2-(2x-1)(3x-2) \qquad\qquad\qquad F=x^2+16x+64$$
}


%\vspace*{8cm}







%\vspace*{5cm}
\newpage

\setcounter{exer}{0}
\textbf{Nom : }$\dots\dots\dots\dots\dots$ \hskip10mm \textbf{Pr\'enom : }$\dots\dots\dots\dots\dots$  \hskip30mm Classe :$\dots\dots$\\
\Cj{ \Int }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	Interros Recto


\Exop{
Développer puis réduire chaque expression :
$$A=(5x-4)^2 \qquad\qquad\qquad B=\left(\dfrac12x-4\right)^2 \qquad\qquad\qquad C=\left(\dfrac12y\right)\left(\dfrac12y +1\right)$$
}

\vspace*{7cm}

\Exop{
Factoriser chacune des expressions suivantes :
$$ D=9a+15 \qquad\qquad\qquad E=(2x+5)^2+(2x+5)(x-4)+2x+5 \qquad\qquad\qquad F=4x^2-20x+25$$
}





\end{document}

 