1 |
x-1 |
x2-2x+1 |
x+1 |
1 |
x |
1 |
y |
y-x |
3x2 |
1 |
x-1 |
(x-1)2 |
x+1 |
x-1 |
x+1 |
2-1 |
2+1 |
1 |
3 |
y-x |
xy |
3x2 |
y-x |
3x |
y |
3×2 |
3 |
1 |
3 |
x2 |
x-1 |
2x |
1-x |
x |
x-1 |
x2-4x+4 |
x2-4 |
x |
x+2 |
x-1 |
x+2 |
1 |
x |
x2-2x+1 |
x2-1 |
1 |
x-1 |
x |
x2-1 |
x2 |
x2-y2 |
y 2 |
y-x |
x+2 |
x-2 |
4 |
x2-4x+4 |
x |
x-2 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x-4 |
x3-2x2 |
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