2) Factorise
(ii) 5a + 15
(iv) 10p’ar + 15pqr
(V) 14-28%
(vi) 6ab-a
(vii) 3x +9x + 12 (viii) 8a' - 16a? + 40
(ix) 4x - 12xy? - 8x
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Answer:
(ii) 5a+15
Step-by-step explanation:
5a+15=0
5a= -15
a= -15/5
a= -3
(vii) 3x+9x+12=0
12x+12=0
12x= -12
x= -12/12
X= -1
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