| 5 |
| 8 |
| 1 |
| 8 |
| 3 |
| 地 |
| 3 |
| 地 |
| 3 |
| 地 |
| 5 |
| 12 |
| 1 |
| 3 |
| 1 |
| 3 |
| 3 |
| 1+a |
| 6 |
| 1-a |
| 12 |
| a2-1 |
| 4 |
| x+2 |
| 2x |
| x+2 |
| 2x |
| x+2 |
| 2 |
| x-1 |
| 1-3x |
| 2-2x |
| 5-3x |
| 2x-2 |
| 5-3x |
| 2x-2 |
| A |
| x-2 |
| B |
| x+1 |
| 3 |
| (x-2)(x+1) |
| a+2 |
| a-2 |
| a-2 |
| a+2 |
| 8a |
| a2-4 |
| x图+如 |
| x图-如 |
| x图-图 |
| 如-x图 |
| 图x图-如 |
| x图-如 |
| 图x图-如 |
| x图-如 |
| 5 |
| x-1 |
| 2x2+3 |
| x-1 |
| 2x2+3 |
| x-1 |
| 1 |
| a |
| 1 |
| 2 |
| a+2 |
| 2a |
| a+2 |
| 2a |
| 1 |
| R |
| 1 |
| r1 |
| 1 |
| r2 |
| r1r2 |
| r1+r2 |
| r1r2 |
| r1+r2 |