Question

Factorise:
1. (i) 12x +15
2. (i) 16a? - 24 ab
3. (1) 24x8 - 36x”y
4. (i) 9x2 - 6x2 + 12x
5. (i) 14x + 21x*y - 28xºy?
6. (i) x(x + 3) +5(x +3)

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Answer 1

Explanation:

• 12x+15 Taking 3 as common

3(4x+5) Answer 3(4x+5)

• 16a 2−24ab Taking 8a as a common

=8a(2a−3b)