x |
x-1 |
x |
x-1 |
x2 |
(x-1)2 |
4x |
x-1 |
x |
x-1 |
x |
x-1 |
x |
x-1 |
x |
x-1 |
2x |
x-1 |
4x |
x-1 |
|
2x |
x-1 |
2x |
x-1 |
1 |
x-y |
1 |
x+y |
|
|
|
|
|
|
3 |
x2-x |
6 |
1-x2 |
7 |
x2+x |
A.0是它的增根 | B.-1是它的增根 |
C.原分式方程无解 | D.1是它的根 |
x-4 |
x+1 |
3 |
x+1 |
A.x-4=3-2 | B.x-4=3-2x+1 | C.x-4=3-2x+2 | D.x-4=3-2x-2 |
x |
x-2 |
2 |
x2-4 |
10 |
x |
3 |
x-7 |
2x |
2x-1 |
5 |
1-2x |
6x-1 |
3x+2 |
4x-7 |
2x-5 |
x-2 |
x+2 |
16 |
x2-4 |
x+2 |
x-2 |
1 |
a |
1 |
b |
2 |
3 |
A.x=4 | B.x=1 | C.无解 | D.-1 |
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