| 1 |
| a |
| 1 |
| a |
| 1 |
| a |
| 1 |
| a |
| a-1 |
| a |
| a2-1 |
| a |
| a-1 |
| a |
| a |
| (a+1)(a-1) |
| 1 |
| a+1 |
| a3 |
| a+1 |
| a |
| a+1 |
| m2 |
| m-1 |
| 4a |
| a2-1 |
| 1+a |
| 1-a |
| a2b |
| -cd3 |
| 2a |
| d3 |
| c |
| 2a |
| m-1 |
| m |
| m2-1 |
| m2+2m |
| 1 |
| 9x2 |
| 5 |
| 6x |
| 3 |
| 4x2 |
| 4 |
| 2-a |
| x2-4y2 |
| x2+2xy+y2 |
| x+2y |
| x2+xy |
| a-b |
| a+2b |
| a2-b2 |
| a2+4ab+4b2 |
| 1 |
| x-1 |
| x+1 |
| 1-x |
| x |
| x-1 |
| 1 |
| b2 |
© 2017-2019 超级试练试题库,All Rights Reserved.