2 |
2 |
2 |
x |
A.
| B.2
| C.3
| D.2 |
2 |
2 |
2 |
2 |
x |
2 |
2 |
2 | ||
2-
|
2 |
2(2+
| ||||
(2-
|
2 |
2(2+
| ||
22-(
|
2 |
2(2+
| ||
2 |
2 |
2 |
2 |
1 |
x |
7 |
1 |
x |
A.
| B.±2 | C.±
| D.
|
3 |
b |
3 |
3 |
1 |
3 |
27 |
3 |
12 |
3 |
12 |
1 |
3 |
3 |
1 | ||
|
2 |
1 | ||||
|
3 |
2 |
1 | ||||
|
4 |
3 |
1 | ||||
|
5 |
4 |
1 | ||
|
1 | ||||
|
1 | ||||
|
1 | ||||
|
1 | ||||
|
2011 |
|
4x |
9x |
1 |
2 |
x |
x+2 |
x2+2x+1 |
x+2 |
x2-1 |
x-1 |
3 |
1-8x |
8x-1 |
1 |
2 |
|
|
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