1 |
|m| |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
x-2 |
x+3 |
3 |
4 |
3 |
x-1 |
4 |
x |
300 |
x |
480 |
2x |
x |
2x-5 |
5 |
5-2x |
1 |
x-2 |
1-x |
2-x |
2x+9 |
3x-9 |
4x-7 |
x-3 |
2 |
1-x2 |
3 |
1+x |
1 |
x-1 |
x-2 |
x+1 |
2x |
x-1 |
2 |
x+2 |
3-2x |
1-x |
x+2 |
x-3 |
x-1 |
x+1 |
x |
x-1 |
4 |
x2-1 |
1 |
x-1 |
1 |
x-1 |
A.-1,2 | B.1,-2 | C.0,
| D.0,3 |
1 |
x-1 |
2 |
x+1 |
4 |
x2-1 |
A.x=0 | B.x=-1 | C.x=±1 | D.无解 |
3 |
x-2 |
a |
x |
4 |
x(x-2) |
A.0 | B.2 | C.0或2 | D.1 |
x-1 |
x-2 |
a |
2-x |
A.x=1 | B.x=2 | C.x=-2 | D.无法确定 |
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