(a + b) (a - b) = a² - b² (& omgekeerd)

(a + b) (a - b) = a² - b² (& omgekeerd)

8th Grade

11 Qs

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(a + b) (a - b) = a² - b² (& omgekeerd)

(a + b) (a - b) = a² - b² (& omgekeerd)

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Iris Struyf

Used 394+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Merkwaardig product (a + b) (a - b) =

a² - b²

a² + b²

a² + 2ab + b²

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

(a - 9)(a + 9) =

a² - 81

a² + 81

a² - 18a + 81

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

(2a² - 3b) (2a² + 3b) =

4a² - 9b

4a4 - 18b

4a4 - 9b²

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Nu omgekeerd! Het antwoord is 9a² - 16, wat was de opgave?

(3a - 4) (3a + 4)

(9a - 4)(9a + 4)

(3a - 8) (3a + 8)

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Het antwoord is: 25b² - 9c², wat was de opgave?

(5b - 9c) (5b + 9c)

(5b² + 3c) (5b² - 3c)

(5b + 3c) (5b - 3c)

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

het antwoord is: 100x² - 36, wat was de vraag?

(10x² + 6) (10x² - 6)

(10x + 6) (10x - 6)

(10x² - 6) (10x² + 6)

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Vul aan: 81a²b² - 16 = (9ab - .....) (9ab + ......)

4

8

16

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