Factorise : 4(a-b)²-4(a-b)
with steps
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Answer:
4(a-b)²-4(a-b)
4[a²+b²-2ab] - 4a +4b
4a²+4b²-8ab - 4a +4b
4a²+4b²-4a+4b -8ab
4(a-b)²-4(a-b)
4[a²+b²-2ab] - 4a +4b
4a²+4b²-8ab - 4a +4b
4a²+4b²-4a+4b -8ab
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