1 |
a |
1 |
b |
1 |
a+b |
b |
a |
a |
b |
A.-2 | B.2 | C.3 | D.-3 |
1 |
a |
1 |
b |
1 |
a+b |
b-a |
ab |
1 |
a+b |
b |
a |
a |
b |
b2-a2 |
ab |
ab |
ab |
a |
b |
b |
a |
a2+b2 |
ab |
x2-4x+4 |
x2+x |
3 |
x+1 |
1 |
x+2 |
a2-4 |
a2-4a+4 |
1 |
2-a |
2 |
a2-2a |
2 |
2 |
2 |
1 |
a-2 |
1 |
a+2 |
2 |
2-a |
3 |
1 |
1-x |
x2-x+1 |
x2-2x+1 |
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