化简ab分之a²-b²-ab-a²分之ab-b²=

来源：学生作业学帮网编辑：学帮网时间：2024/06/01 09:48:03

原式=(a²-b²)/ab-b(a-b)/[-a(a-b)]
=(a²-b²)/ab+b/a
=(a²-b²)/ab+b²/ab
=(a²-b²+b²)/ab
=a²/ab
=a/b