x |
x2-1 |
1 |
x-1 |
1 |
x+1 |
x |
x2-1 |
1 |
x-1 |
1 |
x+1 |
x3-x+x |
x2-1 |
2(x2-1)+x+1-x+1 |
(x+1)(x-1) |
x3 |
(x+1)(x-1) |
(x+1)(x-1) |
2x2 |
x |
2 |
1 |
a |
1 |
1-a |
a2-a+1 |
a2-2a+1 |
1 |
1-x |
x |
x-1 |
a2+8 |
a2+4a+4 |
4a-4 |
a2+2a |
1 |
x |
x2-1 |
x |
x-2 |
x+2 |
x+2 |
x-2 |
x2-2x |
x2 |
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