1 |
x-1 |
2 |
x2-1 |
1 |
x-1 |
x2-4x+4 |
x2-1 |
x-1-1 |
x-1 |
(x+1)(x-1) |
(x-2)2 |
x+1 |
x-2 |
1 |
2 |
2 |
x-1 |
x |
1-x |
A.2+x=x-1 | B.2-x=1 | C.2+x=1-x | D.2-x=x-1 |
m |
x-1 |
3 |
1-x |
x |
x+1 |
m+1 |
x2+x |
x+1 |
x |
2 |
x-3 |
3 |
x |
1 |
2x |
2 |
x+3 |
x-1 |
x-4 |
m |
x-4 |
A.2 | B.3 | C.-3 | D.1 |
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