5 |
x-2 |
x-3 |
x-2 |
x2-4-5 |
x-2 |
x-3 |
x-2 |
(x+3)(x-3) |
x-2 |
x-2 |
x-3 |
2a |
a2-4 |
1 |
2-a |
4 |
1 |
3 |
a2 |
a-1 |
x |
x-y |
2y |
x-y |
xy |
x-2y |
1 |
x |
1 |
y |
1 |
x+1 |
1 |
x-1 |
1 |
x+1 |
x |
x+1 |
x+3 |
x-1 |
x2-2x+1 |
x2+4x+3 |
2 |
a+2 |
2 |
a-2 |
2a |
a3-4a |
x+2 |
2x2-3x |
x2+2x |
2x2+x-6 |
1 |
2 |
1 |
4x-6 |
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