|a-1| |
a2+2a-3 |
1 |
a+3 |
A.小明 | B.小华 | C.小颖 | D.都有道理 |
|a-1| |
a2+2a-3 |
|a-1| |
(a+3)(a-1) |
|a-1| |
a2+2a-3 |
1 |
a+3 |
|a-1| |
(a+3)(a-1) |
a-1 |
(a+3)(a-1) |
1 |
a+3 |
|
|a-1| |
a2+2a-3 |
1 |
a+3 |
x+a |
2x-1 |
A.分式值为零 | ||
B.分式无意义 | ||
C.若a≠
| ||
D.若a≠-
|
x-b |
2x+a |
1+2x |
1-2x |
2x+1 |
3x-4 |
m |
m-1 |
m-2 |
m+3 |
m2-1 |
m+1 |
x-2 |
3-4x |
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