1 |
x-1 |
1 |
x+1 |
x |
2x2-2 |
1 |
x-1 |
1 |
x+1 |
x |
2x2-2 |
x+1-x+1 |
(x+1)(x-1) |
x |
2(x+1)(x-1) |
2 |
(x+1)(x-1) |
2(x+1)(x-1) |
x |
4 |
x |
4 |
2 |
4 |
-2 |
|x-1| |
1-x |
|x-2| |
x-2 |
A.1 | B.-1 | C.-2 | D.2 |
1 |
a-1 |
a2-1 |
a |
x2-2x+1 |
x2-1 |
x-3 |
x+1 |
4ab |
a-b |
a |
b |
b |
a |
1 |
a |
1 |
b |
3 |
3 |
a |
a-b |
b |
b-a |
a2b |
-cd3 |
2a |
d3 |
c |
2a |
a2 |
a-1 |
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