| 2ab-b2 |
| a |
| a2+ab |
| a2-b2 |
| 3 |
| m-3 |
| 3m2-6m |
| 5 |
| m-2 |
| x |
| x-1 |
| x |
| x2-1 |
| x2-x |
| x2-2x+1 |
| a2-2ab+b2 |
| a |
| a(a+b) |
| (a-b)(a+b) |
| (a-b)2 |
| a |
| a(a+b) |
| (a-b)(a+b) |
| m-3 |
| 3m(m-2) |
| m2-4 |
| m-2 |
| 5 |
| m-2 |
| m-3 |
| 3m(m-2) |
| (m-3)(m+3) |
| m-2 |
| m-3 |
| 3m(m-2) |
| m-2 |
| (m-3)(m+3) |
| 1 |
| 3(m2+3m) |
| 1 |
| 3 |
| x2+x-x |
| (x-1)(x+1) |
| (x-1)2 |
| x(x-1) |
| x |
| x+1 |
| 2 |
| 2+1 |
| 2 |
| 3 |
科目:初中數(shù)學 來源: 題型:
| x |
| x+1 |
| 1 |
| x2-1 |
| 3 |
| 1 |
| x-2 |
| x-1 |
| 2-x |
|
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