题目内容
计算:
÷
-
| x2+2x+1 |
| x+2 |
| x2-1 |
| x-1 |
| 1 |
| x+2 |
原式=
•
-
(2分)
=
-
(5分)
=
.(7分)
故答案为
.
| (x+1)2 |
| x+2 |
| x-1 |
| (x+1)(x-1) |
| 1 |
| x+2 |
=
| x+1 |
| x+2 |
| 1 |
| x+2 |
=
| x |
| x+2 |
故答案为
| x |
| x+2 |
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