3 |
6 |
2 |
4ab |
a-b |
4ab |
a+b |
4ab |
a-b |
4ab |
a+b |
(a-b)2+4ab |
a-b |
(a+b)2-4ab |
a+b |
(a+b)2 |
a-b |
(a-b)2 |
a+b |
3 |
6 |
2 |
3 |
6 |
2 |
a2-a-3 |
a-1 |
a2-2a+1 |
a2+2a |
1 |
a-2 |
a-2 |
a2-4 |
3x |
x-2 |
x |
x+2 |
x |
x2-4 |
1 |
x |
1 |
y |
A.
| B.2 | C.-
| D.-2 |
a2+2a+1 |
a2-1 |
1 |
a-1 |
2 |
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