| m2-4n2 |
| m2-mn |
| m-n |
| m2-2mn |
| x2-2xy+y2 |
| xy |
| x-y |
| x2 |
| a2-b2 |
| ab |
| a |
| a-b |
| x2-y2 |
| xy |
| x |
| x-y |
| m2-4n2 |
| m2-mn |
| m-n |
| m2-2mn |
| (m+2n)(m-2n) |
| m(m-n) |
| m-n |
| m(m-2n) |
| m+2n |
| m2 |
| x2-2xy+y2 |
| xy |
| x-y |
| x2 |
| xy |
| (x-y)2 |
| x2 |
| x-y |
| x4y |
| (x-y)2 |
| a2-b2 |
| ab |
| a |
| a-b |
| (a+b)2(a-b)2 |
| a2b2 |
| a3 |
| (a-b)3 |
| a(a+b)2 |
| b2(a-b) |
| x2-y2 |
| xy |
| x |
| x-y |
| (x+y)2(x-y)2 |
| x2y2 |
| 1 |
| x+y |
| x3 |
| (x-y)3 |
| x(x+y) |
| y2(x-y) |
| x2+xy |
| xy2-y3 |
科目：初中數學 來源： 題型：
| m2+a2 |
| n2+a2 |
| m |
| n |
| A、4個 | B、3個 | C、2個 | D、1個 |
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科目：初中數學 來源： 題型：
| m2-3m |
| m2-9 |
| 3 |
| m+3 |
| x |
| x-3 |
| x+6 |
| x2-3x |
| 1 |
| x |
| y |
| x |
| y |
| x |
| 1 |
| x-y |
| 1 |
| x+y |
| 2x |
| x2-2xy+y2 |
| 1 |
| 1-a |
| a2-a+1 |
| a2-2a+1 |
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