问题
解答题
化简(1+
|
答案
原式=（
+x-y x-y
）×y x-y (x-y)(x+y) x
=
•x x-y (x-y)(x+y) x
=x+y．
故答案为x+y．
搜题请搜索小程序“爱下问搜题”
化简(1+
|
原式=（
+x-y x-y
）×y x-y (x-y)(x+y) x
=
•x x-y (x-y)(x+y) x
=x+y．
故答案为x+y．