| b |
| a |
| a |
| b |
| a |
| ab2 |
| b |
| a2b |
| 1 |
| a-b |
| 1 |
| a+b |
| 1 |
| m-2 |
| x |
| x-y |
| x |
| y |
| m-15 |
| m2-9 |
| 3 |
| 3+m |
| b2-a2 |
| ab |
| a3-b3 |
| a2b2 |
| a+b+a-b |
| (a-b)(a+b) |
| 2a |
| (a-b)(a+b) |
| (m-2)2+1 |
| m-2 |
| m2-4m+5 |
| m-2 |
| xy |
| y(x-y) |
| x(x-y) |
| y(x-y) |
| xy-x2+xy |
| y(x-y) |
| x(2y-x) |
| y(x-y) |
| m-15 |
| (m+3)(m-3) |
| 3(m-3) |
| (m+3)(m-3) |
| m-15-3m+9 |
| (m+3)(m-3) |
| -2(m+3) |
| (m+3)(m-3) |
| 2 |
| 3-m |
科目:初中數(shù)學(xué) 來源: 題型:
| b |
| a |
| a |
| b |
| b |
| a |
| b |
| a |
| 2 |
| xy |
| x |
| 8 |
| 5y2 |
| 4x |
| 8x2 |
| 15y3 |
| b |
| 9a2 |
| 5ab |
| 18xy |
| 9x2y3 |
| 10a2b |
| 18a2b2 |
| 7cd |
| 9ab3 |
| 7c2d4 |
| b2c |
| 2a2 |
| -bc2 |
| 4a |
| 3a |
| 4b |
| 4x4y2 |
| 15a3 |
| -8x2y2 |
| 35a2 |
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