题干
计算：
÷（x+5）•
．
| x |
| + |
| 5 |
| 2 |
| 3 |
| x |
| 6 |
| x |
| x |
| + |
| 5 |
答案(点此获取答案解析）
解：原式=
•
| x |
| + |
| 5 |
| 2 |
| 3 |
| x |
| x |
| + |
| 5 |
| 2 |
| 3 |
| x |
| 6 |
| x |
| x |
| + |
| 5 |
| x |
| + |
| 5 |
| 2 |
| 3 |
| x |
