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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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