題目列表(包括答案和解析)
2 | ||
|
3 |
12 |
|
x-3 |
x-2 |
5 |
x-2 |
1 |
2 |
1 |
6 |
3 |
16 |
3 | -8 |
x-y |
x+2y |
x2-y2 |
x2+4xy+4y2 |
1 |
3 |
6 |
x-1 |
3 |
x |
x+5 |
x2-x |
5 |
x-2 |
x-3 |
x-2 |
3-x |
x-4 |
1 |
4-x |
x+2 |
x2- 4 |
2 |
x-2 |
a2-1 |
a2-2a+1 |
2a+2 |
a-1 |
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