x2 |
x-1 |
4 |
1 |
3 |
x2-y2 |
x |
2xy-y2 |
x |
6 |
x2-9 |
1 |
x+3 |
x2 |
x-1 |
x+1 |
1 |
x2 |
x-1 |
(x+1)(x-1) |
x-1 |
x2-(x2-1) |
x-1 |
1 |
x-1 |
1 |
4 |
1 |
4 |
a4c6 |
4b7 |
(x+y)(x-y) |
x |
x2-2xy+y2 |
x |
(x+y)(x-y) |
x |
x |
(x-y)2 |
x+y |
x-y |
6 |
(x+3)(x-3) |
x-3 |
(x+3)(x-3) |
x+3 |
(x+3)(x-3) |
1 |
x-3 |
1 |
2 |
1 |
4 |
1 |
3 |
1 |
3 |
1 |
3 |
2011 |
1 |
2 |
4 |
a2-4 |
a+2 |
a |
12 |
1 |
2 |
3 | -8 |
3 |
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