2 |
x-3 |
3 |
2x-1 |
1 |
x+1 |
2 |
x-1 |
4 |
x2-1 |
10x |
2x-1 |
5 |
1-2x |
x |
x-1 |
3 |
x2-1 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
x |
x-2 |
6 |
x+2 |
2 |
x-4 |
1-x |
4-x |
A.x=-3 | B.x=3 | C.x=4 | D.x=3或x=4 |
1 |
x-1 |
2 |
x+1 |
2x |
x2-9 |
2 |
x+3 |
1 |
x-3 |
x |
x+1 |
m |
x+1 |
A.1 | B.0 | C.-1 | D.-2 |
x |
x-1 |
1 |
x |
10x |
2x-1 |
5 |
1-2x |
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