x |
x-y |
2y |
x-y |
xy |
x-2y |
1 |
x |
1 |
y |
x-2y |
x-y |
xy |
x-2y |
x+y |
xy |
xy |
x-y |
xy |
x+y |
x2y2 |
x2-y2 |
2x-6 |
4-4x+x2 |
x2+x-6 |
3-x |
a2 |
b |
b2 |
a |
1 |
ab |
2+
| ||
2-
|
| ||||
|
3-x |
2x-4 |
5 |
x-2 |
1 |
x-1 |
1 |
x+1 |
x |
x-1 |
1 |
x2-x |
2 |
a |
a-1 |
a2-a |
a2-1 |
1 |
1-a |
2 |
x+1 |
1 |
x2-1 |
x |
x2-2x+1 |
1 |
a+1 |
1 |
a2-1 |
a+1 |
a2-2a+1 |
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