1 |
2|a| |
|a| |
b |
1 |
2|a| |
|a| |
b |
1 |
2|a| |
|a| |
2-a |
1 |
2|a| |
|a| |
2-a |
1 |
2a |
a |
a-2 |
1 |
2a2 |
2 |
(a-2)2 |
-(3a-2)(a+2) |
2a2(a-2)2 |
1 |
2|a| |
|a| |
b |
3 |
4 |
3 |
4 |
1 |
2|a| |
|a| |
b |
5 |
4 |
1 |
2|a| |
|a| |
b |
4 |
4-x2 |
9 |
9-y2 |
A.
| B.
| C.
| D.
|
x2-4x+5 |
2x-4 |
1 |
a |
4 |
b |
A.8 | B.12 | C.16 | D.20 |
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