题目内容
计算：
+
=______．
| x |
| (x-y)3 |
| y |
| (y-x)3 |
原式=
-
=
=
．
故答案为：
．
| x |
| (x-y)3 |
| y |
| (x-y)3 |
| x-y |
| (x-y)3 |
| 1 |
| (x-y)2 |
故答案为：
| 1 |
| (x-y)2 |
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相关题目
题目内容
| x |
| (x-y)3 |
| y |
| (y-x)3 |
| x |
| (x-y)3 |
| y |
| (x-y)3 |
| x-y |
| (x-y)3 |
| 1 |
| (x-y)2 |
| 1 |
| (x-y)2 |
