Expressions algébriques équivalentes

Expressions algébriques équivalentes

10th Grade

14 Qs

quiz-placeholder

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Expressions algébriques équivalentes

Expressions algébriques équivalentes

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

Geneviève Couture

Used 13+ times

FREE Resource

14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Trouve le facteur manquant:

 42x²+56x=?(6x+8)42x²+56x=\ldots?\ldots(6x+8)  

 5x5x  

 66  

 7x7x  

 77  

aucune de ces réponses

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Factorise 15x²+5x15x²+5x  

 5x(3x+1)5x(3x+1)  

 5(3x²+x)5(3x²+x)  

 15(x2+x)15\left(x^2+x\right)  

 x(15x+5)x\left(15x+5\right)  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Factorise l'expression suivante : a²8a+16 =a²-8a+16\ = 

 a4²a-4²  

 a+4²a+4²  

 (a4)²\left(a-4\right)²  

 (a+4)²\left(a+4\right)²  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Détermine le terme manquant dans cette égalité:
 4x2+?+25=(2x+5)24x^2+?+25=\left(2x+5\right)^2  

10x

25x

100

20x

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Quelle expression est équivalente à l'expression suivante:
 x29=?x^2-9=?  

(x+3)²

(x-3)²

(x+3)(x-3)

n'est pas factorisable car c'est une somme de deux carrés.

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Factorise le trinôme suivant:

 x2+13x30x^2+13x-30  

 (x+10)(x+3)\left(x+10\right)\left(x+3\right)  

 (x+15)(x2)\left(x+15\right)\left(x-2\right) 

 (x+10)(x3)\left(x+10\right)\left(x-3\right)  

 (x+15)(x+2)\left(x+15\right)\left(x+2\right)  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Factorise l'expression suivante : x²+10x+21 =x²+10x+21\ =  

 (x3)(x+7)\left(x-3\right)\left(x+7\right)  

 (x3)(x7)\left(x-3\right)\left(x-7\right)  

 (x+3)(x+7)\left(x+3\right)\left(x+7\right)  

Non factorisable!

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