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Answers

Factorisation

Exercise 1

1. 2(2x + 1)

2. 2(3x + 1)

3. 3(3x + 1)

4. 4(4x + 1)

5. 7(3x + 1)

6. 2x(2 + 1)

7. 2x(3 + 1)

8. 3x(3 + 1)

9. 4x(4 + 1)

10 7x(3 + 1)

Exercise 2

1. (x + 2)(X + 3)

2. (x + 2)(x + 8)

3. (x - 1)(x + 5)

4. (x - 2)(x + 5)

5. (x - 3)(x - 5)  


11. 2x²(2x + 1)

12. 2x(3 + 1)

13. 2x(3x² + 2x + 1)

14. 3x²(x³ + 1)

15. 2x(5x + 1)

16. 5x³(3x² + 1)

17. 5x(4x³ + 2x + 1)

18. 5xy(2 + x²y)

19. 4x²y(3x²y + 1)

20. 2xyz(3x²y + 1)

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