Question

Factorisation of Polynomials
EXERCISE 3F
Factorise
1. r +27
3. 125a +
1
+ 1
5. 16x* +54x
7. x + x²
9. 1 - 27a
11. x°-512
2. 27a? +64
4.216x? +
125
6. 7a56b3
8. q +0.008
10.64a? - 343
12. a? -0.064
1
X
3
13. 8r
14.
216-8y
3
27v
15. x - 8xy
17. 3a%b-81a464
19. 8x’y'-x
21. x - 729
23. (a+b): - (a - b)
16. 32x* - 500x
18. **y* - xy
20. 1029 - 3x
22. x - y
24. 8a - 63 - 4ax + 2bx
3
25. a? + 3a²b + 3ab2 +63 - 8
26. a
2.
1
3
a
a
Zat
а
27. 2a +1663 – 5a - 100
28. a + b
30. x - 7x3-8
32. (x + 1) + (x - 1)
34. 8(x + y)2 - 27 (x - y)
36. (x + 2) - (x - 2)
0.85 X 0.85 X 0.85 +0.15 0.15 0.15
37. Prove that
0.85 X 0.85 -0.85 X 0.15 +0.15 X 0.15
59 x 59 x 59-9X9 X9
38. Prove that
= 50.
59 x 59 +59 X 9+9 X9
29. a'2 - 612
31. x -3x² + 3x +7
33. (2a + 1) + (a - 1)3
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Answer 1

Answer:

see the picture you will get some answers