x |
x+1 |
x |
x2-1 |
2 |
-x2 |
x+1 |
x2-1+x |
(x+1)(x-1) |
-x2 |
x+1 |
(x+1)(x-1) |
x2-1+x |
-x2(x-1) |
x2+x-1 |
2 |
-x2(x-1) |
x2+x-1 |
-(1-
| ||||
(1-
|
3
| ||
3-3
|
| ||
3 |
2a+2 |
a-1 |
a2-1 |
a2-2a+1 |
3 |
5 |
x+2 |
x-3 |
2x+4 |
2 |
x2-x |
x+1 |
x2-1 |
x2-2x+1 |
a2-4 |
a |
a+2 |
a2+a |
3 |
2 |
a-b |
a |
2ab-b2 |
a |
3 |
3 |
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