计算:(a²-b²)/(a+b)+(a²-2ab+b²)/（a-b)

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计算:(a²-b²)/(a+b)+(a²-2ab+b²)/（a-b)计算:(a²-b²)/(a+b)+(a²-2ab+b²

计算:(a²-b²)/(a+b)+(a²-2ab+b²)/（a-b)
计算:(a²-b²)/(a+b)+(a²-2ab+b²)/（a-b)

计算:(a²-b²)/(a+b)+(a²-2ab+b²)/（a-b)
原式=(a+b)(a-b)/(a+b)+(a-b)²/(a-b)
=a-b+a-b
=2a-2b