1 |
x-1 |
x+1 |
1-x |
x |
x-1 |
1 |
x-2 |
1 |
x+2 |
3 |
(x+2)(x-2) |
1 |
x-1 |
x+1 |
x-1 |
x2-x |
x-1 |
x |
x-1 |
-x |
x-1 |
x-1 |
x2 |
1 |
x |
3 |
2 |
3 |
2 |
3 |
2 |
2-x |
x+1 |
5 |
x+1 |
x+k |
x-2 |
1 |
x |
x2-1 |
x2 |
3 |
2x-2 |
1 |
1-x |
x-2 |
x+2 |
x+2 |
x-2 |
16 |
x2-4 |
x |
x-y |
y2 |
x+y |
x4y |
x4-y4 |
x2 |
x2+y2 |
x |
x+2 |
x+2 |
x-2 |
8 |
x2-4 |
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