1 |
a |
a2-1 |
a2-2a+1 |
2a2-a2 |
a-2 |
1 |
a |
a-1 |
a |
a |
a-1 |
a2-1 |
a2-2a+1 |
2a2-a2 |
a-2 |
(a+1)(a-1) |
(a-1)2 |
a2 |
a-2 |
1 |
a |
a+1 |
a-1 |
a |
a-2 |
2a2-2a-2 |
(a-1)(a-2) |
x2-2x+1 |
x2-1 |
x2-x |
x+1 |
1 |
x |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
4-x |
x |
1 |
1-a |
a2-a+1 |
a2-2a+1 |
2x |
x+2 |
x |
x-2 |
x |
x2-4 |
1 |
2 |
x2y+xy2 |
(x-y)2 |
x-y |
x+y |
1 |
5 |
x2+2xy+y2 |
x2-y2 |
x2+xy |
x-y |
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