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3°-calcul littéral

Authored by Denis Lescarboura

Mathematics

9th Grade

Used 19+ times

3°-calcul littéral
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Développer  x3 (2x2+3x)x^3\ \left(2x^2+3x\right)  

 2x5+3x42x^5+3x^4  

 2x6+3x32x^6+3x^3  

 5x95x^9  

 5x5x  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (2a+3)(2a 3)=\left(2a+3\right)\cdot\left(2a\ -3\right)=  

 4a294a^2-9  

  4a9\ 4a-9  

 4a2+94a^2+9  

une autre réponse

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

L'expression factorisée de 5x+10 est

5(x+10)

5(x+2)

5(x+5)

5(x+1)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 10aa+3a=10a-a+3a=  

6a

13a²

12a

12a²

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 b(52b)=b\left(5-2b\right)=  

5b-2b²

3b²

5b+2b

3b²

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 a23a=a^2-3a=  

a² (1 - 3a)

3 ( a² - a)

a ( a - 3)

3a ( a - 1)

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Quelle est la longueur d'un rectangle de largeur x sachant que son aire est égale à 11x²+x

11x+1

11x²

11x²-2x

11+x

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