4 |
2-a |
a |
a-2 |
a2-4+4 |
a-2 |
a-2 |
a |
2m |
3n |
3n |
p |
mn |
p2 |
x2+4 |
x-2 |
4x |
2-x |
a3 |
2b |
a2 |
b |
b |
2 |
2x+4 |
x2-6x+9 |
x2-9 |
x+2 |
2 |
x+2 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x2 |
x-1 |
2 |
a+1 |
a+2 |
a2-1 |
a |
a-1 |
x2 |
x+2 |
4 |
x+2 |
x-2 |
x |
x-1 |
x+2 |
x2-2x+1 |
x2-4 |
1 |
x-1 |
2011a |
a2-2a+1 |
1 |
a-1 |
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