Question

Factorise by regrouping terms:

1)ab-a+b-1
2)6ab-b^2-12ac-2bc
3)ar+br+at+bt
4)x^3-3x^3+x-3
5)ab^2-bc^2-ab+c^2
With Steps

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

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