diff --git a/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-1-exercise-body.tex b/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-1-exercise-body.tex
deleted file mode 100644
index 6a2e4ef..0000000
--- a/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-1-exercise-body.tex
+++ /dev/null
@@ -1,18 +0,0 @@
-% ------------------------------------------------------------------------
-% file `T1_etude_sgn-exercise-1-exercise-body.tex'
-%   in folder `exercises/'
-%
-%     exercise of type `exercise' with id `1'
-%
-% generated by the `exercise' environment of the
-%   `xsim' package v0.11 (2018/02/12)
-% from source `T1_etude_sgn' on 2018/09/07 on line 55
-% ------------------------------------------------------------------------
-    Tracer le tableau de signe des polynômes suivants
-    \begin{multicols}{3}
-        \begin{enumerate}
-            \item $a(x) = 3x^2 + 2x - 5$
-            \item $b(x) = x^2 + 2x + 1$
-            \item $c(x) = -x^2 + 5x$
-        \end{enumerate}
-    \end{multicols}
diff --git a/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-2-exercise-body.tex b/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-2-exercise-body.tex
deleted file mode 100644
index de51963..0000000
--- a/PreStSauveur/TESL/Polynomes_derivation/exercises/T1_etude_sgn-exercise-2-exercise-body.tex
+++ /dev/null
@@ -1,18 +0,0 @@
-% ------------------------------------------------------------------------
-% file `T1_etude_sgn-exercise-2-exercise-body.tex'
-%   in folder `exercises/'
-%
-%     exercise of type `exercise' with id `2'
-%
-% generated by the `exercise' environment of the
-%   `xsim' package v0.11 (2018/02/12)
-% from source `T1_etude_sgn' on 2018/09/07 on line 67
-% ------------------------------------------------------------------------
-    Résoudre les équations suivantes
-    \begin{multicols}{3}
-        \begin{enumerate}
-            \item $4x^2 -  5x + 3 > 0$
-            \item $5x + 3 > 6x - 3$
-            \item $4x^2 -  5x + 3 > 0$
-        \end{enumerate}
-    \end{multicols}