a-b |
a+2b |
a2-b2 |
a2+4ab+4b2 |
a-b |
a+2b |
a2-b2 |
a2+4ab+4b2 |
a-b |
a+2b |
(a+2b)2 |
(a+b)(a-b) |
a+2b |
a+b |
a+b |
a+b |
a+2b-a-b |
a+b |
b |
a+b |
2 |
2+2 |
2 |
4 |
1 |
2 |
-2 |
1-2 |
1 |
4 |
1 |
m |
1 |
m |
ab |
a+b |
1 |
3 |
bc |
b+c |
1 |
4 |
ac |
a+c |
1 |
5 |
1 |
a |
1 |
b |
1 |
c |
(-m)3×(-1)4-|-12|÷[-(-
| ||
-m2×(-
|
A.-2 | B.-1 | C.1 | D.2 |
3x-3 |
x2-1 |
3x |
x+1 |
1 |
x-1 |
x2+3x-6 |
x+2 |
x2-4 |
x2+4x+4 |
5 |
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