题目内容
化简
•
=______．
| 5x+5y |
| 3a2b |
| 6a3b2 |
| x2-y2 |
原式=
•
=
．
故答案为：
| 5(x+y) |
| 3a2b |
| 6a3b2 |
| (x+y)(x-y) |
| 10ab |
| x-y |
故答案为：
| 10ab |
| x-y |
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题目内容
| 5x+5y |
| 3a2b |
| 6a3b2 |
| x2-y2 |
| 5(x+y) |
| 3a2b |
| 6a3b2 |
| (x+y)(x-y) |
| 10ab |
| x-y |
| 10ab |
| x-y |