2 |
3 |
9x |
|
|
3 |
2 |
3 |
3 |
1 | ||
2+
|
1 | ||
2-
|
a2-b2 |
2a+2b |
x |
x |
x |
x |
6 |
6 |
1 | ||
2+
|
1 | ||
2-
|
3 |
3 |
a2-b2 |
2a+2b |
(a+b)(a-b) |
2(a+b) |
a-b |
2 |
a-b |
2 |
2-
| ||||
2 |
3 |
a |
a2-3a-1 |
b |
b2-3b-1 |
c |
c2-3c-1 |
4 |
9 |
3-x |
x-2 |
5 |
x-2 |
1 |
a2-1 |
1 |
a3-1 |
1 |
a100-1 |
A.
| B.
| C.
| D.
|
a2 |
b |
10a+5b-ab |
a+2b-5 |
a |
b |
1 |
x |
1 |
x |
1 | ||
1-x-
|
x2+
| ||||
x2+
|
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