x+3 |
x+2 |
2-x |
x2-4 |
(x+3)(x-2) |
(x+2)(x-2) |
2-x |
(x+2)(x-2) |
x2-4 |
(x+2)(x-2) |
x2 |
x+1 |
1 |
x+1 |
x |
x-1 |
3 |
(x-1)(x+2) |
6 |
a2-9 |
1 |
a+3 |
1 |
a-3 |
A.M>N | B.互为倒数 | C.M=N | D.互为相反数 |
A.
| B.
| ||||||||||||
C.
| D.
|
a-2 |
a2-1 |
2 |
1-a |
a-2 |
(a+1)(a-1) |
2 |
(a-1) |
a-2 |
(a+1)(a-1) |
2(a+1) |
(a+1)(a-1) |
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