x-2 |
x2-1 |
2x+2 |
x2+2x+1 |
1 |
x-1 |
x-2 |
x2-1 |
2x+2 |
x2+2x+1 |
1 |
x-1 |
x-2 |
(x+1)(x-1) |
(x+1)2 |
2(x+1) |
1 |
x-1 |
x-2 |
2(x-1) |
2 |
2(x-1) |
x |
2(x-1) |
2 |
2(2-1) |
1 |
a |
1 |
b |
1 |
2 |
ab |
a-b |
A.
| B.-
| C.2 | D.-2 |
a |
b |
b |
a |
12xy |
5 |
3-a |
2a-4 |
5 |
a-2 |
1 |
2 |
x2 |
x-1 |
x |
1-x |
4 |
a2-4 |
a |
a-2 |
a2+1 |
a |
(a+2)(a-1) |
a2+2a |
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