x2+xy |
x2-2xy-3y2 |
3y-x |
x-y |
x(x+y) |
(x+y)(x-3y) |
-(x-3y) |
x-y |
1 |
x |
1 |
y |
1 |
x |
1 |
y |
x |
x-y |
x+y |
xy |
xy |
y-x |
x |
x-y |
x+y |
y-x |
2x+y |
x-y |
1 |
x-1 |
x |
x2-1 |
y |
y+x |
x |
y2-x2 |
a2 |
a-3 |
9 |
3-a |
a+3 |
a |
3 |
a-2 |
a+1 |
a2-4 |
x2 |
1-x |
x2 |
x-1 |
9 |
2 |
9 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
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