Question

Factorise :
1 (1) 6x + 9
2 (1) 8x² – 24xy
3: (1) 6xy - Syz
I. (1) 2 + 3x
5. (1) - 3x² + 3xy - 4xz
6. 144 - 28b2 + 210*
9. Or’y+ 18xy - 27xy
12. 12db2 + 18ab4 - 6a+b
15. 64x*y'- 72x^y
18. 18abc - 12ab-c + 6abc
21. ab + ab + b + 1
24. xy + xy + x + 1
2 (a-6) + (a - b)?
29. 7 (a + 2b)2 – 21 (a + 2b)
(ii) 21x + 14
(iii) 1232 - 9
(ii) 10xy - 15x+y (iii) 27% - 1
(ii) 6x + 18
(iii) 10ax - 1
(ii) 21m2 - 14m
(iii) Sy? + 6y
(ii) x’yz + xy?z + xyz (iii) xy - xy
7. db - 6a²b2 + 3ab 8. xy + xy
10. - 5x2 + 5xy - 5xz 11. 3x?y - 2x
13. 16x²y + 12bxy
H. 3x - 632
16. 6x’y? + 8xły - 2xy 17. 15a + 450
19. 8 (x – 3y)2 + 4 (x – 3y) 20. 3x (a - 36
22. x + y + xy (x + y) 23. 3xy - y -
25/ab (x2 + y²) + xy (a + b) 26. a? - a (x
28. (x + y) (3a - b) - (2x - 3y) (3a - b)
30, 4a (5a - 6b) - 12a (5a - 6b

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Answer 1

Step-by-step explanation:

1...

6x+9=0

3(2x+3)=0

2x+3=0/3

2x+3=0

2x=-3

x= -3/2