x2 |
x+1 |
1 |
x+1 |
x-1 |
x |
x2-1 |
x+1 |
x |
x-1 |
(x+1)(x-1) |
x+1 |
x |
x-1 |
1 |
x |
x |
x2-2x |
1 |
1+x |
2x |
1-x2 |
1 |
2 |
1+1 |
2+1 |
2 |
3 |
1 |
2 |
5 |
4 |
5+2 |
4+2 |
7 |
6 |
5 |
4 |
3 |
5 |
3+5 |
5+5 |
4 |
5 |
3 |
5 |
7 |
2 |
7+3 |
2+3 |
7 |
2 |
x-2 |
x+3 |
x2-9 |
x2-4 |
3 |
x-4 |
24 |
x2-16 |
1 |
2x |
1 |
x+y |
x+y |
2x |
1 |
x-2 |
x2-1 |
2x-4 |
1 |
a-b |
1 |
a+b |
b |
a2-2ab+b2 |
2 |
2 |
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