3. Factorise the following by using a suitable method and verify the answer.
(a) 3db-6ab
(b) 27x-9y
(C) 22 + 7zx - 8zx - 28x
(d) 15st - 35s - 91 +21 (e) 9a +3ab-12a-4b (f) 18x y + 36xy b - 24xy
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Answer:
Factorise
Step-by-step explanation:
a)3db-6 ab
=this is only answer
b)27x-9y
=same here this is answer
c)22+7zx-8zx-28x
=7zx-8zx-28x+22
-1zx-28x+22 answer
d)15st-35s-91+21
=-91+21+15st-35s
-70+15st-35s answer
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