2 |
x+1 |
1 |
x2-1 |
x |
x2-2x+1 |
2 |
x+1 |
1 |
x2-1 |
x |
x2-2x+1 |
2 |
x+1 |
1 |
(x+1)(x-1) |
(x-1)2 |
x |
2 |
x+1 |
x-1 |
x(x+1) |
2x |
x(x+1) |
x-1 |
x(x+1) |
2x-x+1 |
x(x+1) |
x+1 |
x(x+1) |
1 |
x |
1 |
x |
1 |
5 |
1 |
a+1 |
1 |
a2-1 |
a+1 |
a2-2a+1 |
1 |
x2 |
1 |
y2 |
2008 |
4x2+12x |
x2+x-6 |
x-2 |
x+2 |
x+2 |
x-2 |
1 |
2 |
m2-3m |
9-m2 |
1 |
x+1 |
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