Question

factorise (a-b) ^2 - (b-c) ^2 ​

Answer 1

Answer:

a²-b²=(a-b)(a+b)

(a-b)²-(b-c)²

(a-b+b-c)(a-b-b+c)

(a-c)(a-2b+c)

a²-2ab+ac-ac-2bc-c²

a²-2ab-2bc-c²

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