Factorise:
1. (1) 12x +15
2. (1) 16a? - 24ab
3. (1) 24-36x"y
4. (1) 9x - 6x2 + 12x
(ii) 14m-21
(11) 15ab2 - 20a2b
(11) 10x - 15x2
(11) 8x2 - 72xy +12
(11) 9n-12n?
(111) 12x'y'-21xy*
(111) 36x®y - 60x'yºz
(11) 18a'b - 27a2b +36a"b"
Answers
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2
- 3(4x+5)
- 8a(2-3b)
- 12(2-3xy)
- 3x(3-2x+4)
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