题目列表(包括答案和解析)
| -3b |
| 2a |
| 5y |
| -7x2 |
| -a-2b |
| 2a+b |
| 2-3x |
| -x+3 |
| 1-2x-3x2 |
| x+1 |
| -a |
| xy2 |
| a |
| xy2 |
| a |
| xy2 |
| 3m |
| -n2 |
| 3m |
| n2 |
| 3m |
| n2 |
| -n |
| ac |
| n |
| ac |
| n |
| ac |
| -m |
| -n3 |
| m |
| n3 |
| m |
| n3 |
3a-
| ||||
|
| 36a-9b |
| 4a+6b |
| 36a-9b |
| 4a+6b |
| 0.1x-0.03y |
| o.4x+0.1y |
| 10x-3y |
| 40x+10y |
| 10x-3y |
| 40x+10y |
| 0.5m-0.2n | ||
|
| 15m-6n |
| 10m+60n |
| 15m-6n |
| 10m+60n |
| -5y |
| -x2 |
| -a |
| 2b |
| 4m |
| -3n |
| -x |
| 2y |
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