1 |
x |
A.1 | B.-1 | C.1或0 | D.1或-1 |
1 |
x-2 |
1 |
x-2 |
A.-2,
| B.3,
| C.-2,
| D.1,
|
1 |
x-1 |
1 |
x-1 |
x |
x-1 |
m |
1-x |
A.1 | B.-1 | C.3 | D.5 |
x |
x-5 |
x-a |
x-6 |
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 |
17×19 |
1 |
2 |
1 |
17 |
1 |
19 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
17×19 |
1 |
x(x+3) |
1 |
(x+3)(x+6) |
1 |
(x+6)(x+9) |
3 |
2x+18 |
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