1 |
x+1 |
x+3 |
x2-1 |
x2+4x+3 |
x2-2x+1 |
1 |
x+1 |
x+3 |
(x+1)(x-1) |
(x-1)2 |
(x+1)(x+3) |
1 |
x+1 |
x-1 |
(x+1)2 |
2 |
(x+1)2 |
2 |
(-3+1)2 |
1 |
2 |
4 |
2-a |
m2-4n2 |
m2-mn |
m-n |
m2-2mn |
1 |
a |
1 |
b |
3a+5ab-3b |
a-3ab-b |
A.
| B.
| C.-
| D.-
|
1 |
a |
a-1 |
a |
1 |
x |
1 |
x-1 |
1 |
x2-1 |
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