1 |
1×3 |
1 |
2 |
1 |
3 |
1 |
3×5 |
1 |
2 |
1 |
3 |
1 |
5 |
1 |
5×7 |
1 |
2 |
1 |
5 |
1 |
7 |
1 |
2003×2005 |
1 |
2 |
1 |
2003 |
1 |
2005 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
2003×2005 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
5 |
1 |
5 |
1 |
7 |
1 |
2003 |
1 |
2005 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
x(x+2) |
1 |
(x+2)(x+4) |
1 |
(x+4)(x+6) |
1 |
(x+2004)(x+2006) |
1 |
9×11 |
1 |
(2n-1)(2n+1) |
1 |
2 |
1 |
x |
1 |
x+2 |
1 |
2 |
1 |
x+2 |
1 |
x+4 |
1 |
2 |
1 |
x+2004 |
1 |
x+2006 |
1 |
2 |
1 |
x |
1 |
x+2 |
1 |
x+2 |
1 |
x+4 |
1 |
x+2004 |
1 |
x+2006 |
1 |
2 |
1 |
x |
1 |
x+2006 |
1003 |
x(x+2006) |
a |
b |
b |
a |
a2+b2 |
ab |
A.0 | B.-
| C.-
| D.
|
x |
x-1 |
1 |
1-x |
1 |
2m-4 |
2 |
m2-4 |
m-2 |
m+1 |
2m-1 |
m+1 |
1 |
a-b |
1 |
a+b |
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