identites remarquables, equations-produits

identites remarquables, equations-produits

7th - 8th Grade

10 Qs

quiz-placeholder

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identites remarquables, equations-produits

identites remarquables, equations-produits

Assessment

Quiz

Mathematics

7th - 8th Grade

Practice Problem

Hard

Created by

I kabbara

Used 39+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(a - b)² = ...

(a + b)(a - b)

a² + 2ab + b²

a² - b²

a² + 2ab - b²

Une autre réponse

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Factoriser à l'aide d'une identité remarquable :


A = x² + 4x + 4

A = (x + 2)²

A = (x + 4)²

A = (2x + 2)²

A = (2x + 4)²

On ne peut pas factoriser

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Factoriser à l'aide d'une identité remarquable :


B = 9x² + 25 - 30x

B = (3x + 5)(3x - 5)

B = (9x + 25)²

B = (x - 5)²

B = (3x - 5)²

On ne peut pas factoriser

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Factoriser à l'aide d'une identité remarquable :


C = 4x² - 20x + 16

C = (4x - 4)²

C = (2x - 4)²

C = (2x - 4)(2x + 4)

C = (2x + 4)²

On ne peut pas factoriser

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Résoudre dans ℝ l'équation :


64x² - 36 = 0

S = { 0,75 }

S = { - 8/6 }

S = { -0,75 ; 0,75 }

S = { -8/6 ; 8/6 }

Une autre réponse

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Factorise:


(x+9)²-25

(x+8)(x-2)

(x+4)(x-4)

(x-8)(x+2)

(x+14)(x+4)

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Résous:


35x²+20x = 0

x = 0 et x = 4/7

x = 0 et x = -4/7

x = 0 et x = -7/4

x = 0 et x = 7/4

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