作业帮计算(a+2ab\a-b）\[（a+b）\（a-b）]求过程,
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计算(a+2ab\a-b）\[（a+b）\（a-b）]求过程,
计算(a+2ab\a-b）\[（a+b）\（a-b）]求过程,
计算(a+2ab\a-b）\[（a+b）\（a-b）]求过程,
[a+(2ab)/(a-b)]/[(a+b)(a-b)]
(a^2-ab+2ab)/(a-b)/[(a+b)(a-b)]
=(a^2+ab)/(a+b)
=a(a+b)/(a+b)
=a