diff --git a/TST/Questions_Flash/P1/QF_20_09_28-2.pdf b/TST/Questions_Flash/P1/QF_20_09_28-2.pdf
index 7927a95..1457f43 100644
Binary files a/TST/Questions_Flash/P1/QF_20_09_28-2.pdf and b/TST/Questions_Flash/P1/QF_20_09_28-2.pdf differ
diff --git a/TST/Questions_Flash/P1/QF_20_09_28-2.tex b/TST/Questions_Flash/P1/QF_20_09_28-2.tex
index f08d2e2..4dc2c46 100755
--- a/TST/Questions_Flash/P1/QF_20_09_28-2.tex
+++ b/TST/Questions_Flash/P1/QF_20_09_28-2.tex
@@ -50,7 +50,7 @@
     Dériver la fonction
     \vfill
     \[
-        f'(x) = 6x^2 - 3x^3 + 20
+        f(x) = 6x^2 - 3x^3 + 20
     \]
     \vfill
 \end{frame}