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