a-2 |
a2-1 |
2a-1 |
a+1 |
a-2 |
a2-1 |
(a+1)(a-1)-(2a-1) |
a+1 |
a-2 |
a2-1 |
a2-2a |
a+1 |
a-2 |
(a+1)(a-1) |
a+1 |
a(a-2) |
1 |
a2-a |
1 |
6 |
a |
a-b |
b |
b-a |
1 |
a+b |
1 |
x-1 |
1 |
x2-1 |
A.1 | B.x+1 | C.
| D.
|
3-x |
x-2 |
13-4x |
x-2 |
x2+3 |
x2-1 |
x-1 |
x+1 |
3 |
x3+8 |
x2+4x+4 |
x3-8 |
x2-4 |
x3-6x2+9x |
x2-x-6 |
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