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