Question 1: les racines de -9(x+8)(x-7) sont:
Quizz 3 en 1ère racines d'un trinôme et forme factorisée

Quiz
•
Mathematics
•
10th Grade
•
Hard
Carole Gueyffier
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
-8
8
-7
7
-9
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Question 2 : la somme des racines de 3x²-6x-24 est:
2
-8
3
-24
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Question 3 : le produit des racines de 3x²-6x-24 est:
3
-6
-24
-8
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Question 4 : le signe de -5(x-8)(x+4) est:
négatif sur ]-∞;-4]
positif sur [-4;8]
négatif sur [8;+∞[
positif sur [-8;4]
négatif sur [-4;8]
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Question 5 : si 2 et-3 sont les racines d'un polynôme du second degré alors il peut s'écrire:
-3(x-2)²
5(x+2)(x-3)
-6(x-2)(x+3)
4x²+2x-3
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