(a-b)²+ (a-b) factorise
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(-)² + (-)
a²- b² + a - b
a²+ a - b² -b
a(a+a) - b(b+b)
a(2a) - b(2b)
(a-b)(2a-2b)
2(a-b)(a-b)
Is this correct?
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