x2-4 |
x2-2x |
x2-2x |
x2-4 |
x2-4 |
x2-4x+4 |
x2-4x+4 |
x2-4 |
x2-2x |
x2-4x+4 |
x2-4x+4 |
x2-2x |
x+2 |
x |
x |
x+2 |
x+2 |
x-2 |
x-2 |
x+2 |
x |
x+2 |
x-2 |
x |
3 | ||
|
A.x≥0且x≠4 | B.x>0且x≠4 | C.x≥0且x≠2 | D.x>0且x≠2 |
x+1 |
x-3 |
1 |
a |
2 |
a+b |
x+y |
2 |
1 |
π |
x2 |
x |
2 |
3 |
| ||
x-3 |
A.x≥-1 | B.x>-1 | C.x≥1且x≠3 | D.x≥-1且x≠3 |
2x+a |
3x-4 |
A.x=
| B.x=-
| ||||||||
C.x=-
| D.x=-
|
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