1 |
1-x |
x2-x+1 |
x2-2x+1 |
1-x-1 |
1-x |
(x-1)2 |
x2-x+1 |
-x |
1-x |
(1-x)2 |
x2-x+1 |
x2-x+1-x2 |
x2-x+1 |
-x+1 |
x2-x+1 |
3x |
x+1 |
x |
x-1 |
x2-2x |
x-1 |
x |
y |
y |
x |
x-y |
x |
A.
| B.
| C.
| D.y |
1 |
x+2 |
x2+2x+1 |
x2-4 |
1 |
x |
1 |
y |
2x-5xy+2y |
x+2xy+y |
x-3 |
x2-1 |
x2+x |
x2+2x+1 |
1 |
x-1 |
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