A.若x2=4,则x=2 | ||||
B.方程x(2x-1)=2x-1的解为x=1 | ||||
C.若x2-5xy-6y2=0(xy≠0),则
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D.若分式
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1 |
2 |
x |
y |
x |
y |
x2-3x+2 |
x-1 |
3x-4 |
1-2a |
m2+4 |
-
|
| ||
x-1 |
| ||
x-1 |
A.x≠1 | B.x>-2且x≠1 | C.x≥-2 | D.x≥-2且x≠1 |
1 | ||
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A.若x2=4,则x=2 | ||
B.若3x2=6x,则x=2 | ||
C.x2+x-k=0的一个根是1,则k=2 | ||
D.若分式
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