| 12x2y2 |
| 9x3y2 |
| x2-2x |
| 2y-xy |
| 2x2-2 |
| x2-2x+1 |
| m2-3m |
| 9-m2 |
| 8m2n |
| 2mn2 |
| 2(x-y)3 |
| y-x |
| 12x2y2 |
| 9x3y2 |
| 4 |
| 3x |
| x2-2x |
| 2y-xy |
| x(x-2) |
| y(2-x) |
| x |
| y |
| 2x2-2 |
| x2-2x+1 |
| 2(x+1)(x-1) |
| (x-1)2 |
| 2(x+1) |
| x-1 |
| m2-3m |
| 9-m2 |
| m(m-3) |
| (3+m)(3-m) |
| m |
| 3+m |
| 8m2n |
| 2mn2 |
| 4m |
| n |
| 2(x-y)3 |
| y-x |
| 4 |
| 3x |
| x |
| y |
| 2(x+1) |
| x-1 |
| m |
| 3+m |
| 4m |
| n |
科目:初中数学 来源: 题型:
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