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Révision de l'algèbre

Authored by Mathieu Pelletier

Mathematics

7th Grade

Used 24+ times

Révision de l'algèbre
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7 questions

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1.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

 (2x2+4x3)+(2x2+4x3)\left(2x^2+4x^3\right)+\left(-2x^2+4x^3\right)  Additionne 

0

 8x38x^3  

 8x68x^6  

2.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

Roger possède 8x + 6 $ et Bob possède 4x + 2 $. Quelle est la différence d'$ entre les 2 ?

4x + 4

4x + 8

3.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

 2a2b5c  6a7b52a^2b^5c\ \cdot\ -6a^7b^{-5}  

Multiplie

 12a9c-12a^9c  

 12a9bc-12a^9bc  

4.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

(a+1)² donne a²+2a+1

vrai

faux

5.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

 4x2y816x8yz4x2y=\frac{4x^2y^8-16x^8yz}{4x^2y}=  

 xy74x6yxy^7-4x^6y  

 y74x6zy^7-4x^6z  

 y64x6y^6-4x^6  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

L'aire d'un rectangle est (40x2y8 - 4x2y) cm². La base de ce rectangle est (4x2y) cm. Quelle est la hauteur de ce rectangle ?

10y7 

10y7 - 1 

10xy8 -xy 

10y8 - 1 

7.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

Trouve la valeur de x de cette équation :

(x+4)(2x-3)=(2x-2)(x+1)

x=0,5

x=5

x=10

x=2

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