a-1 |
a2-4a+4 |
a+2 |
a2-2a |
4 |
a |
3 |
a-1 |
(a-2)2 |
a+2 |
a(a-2) |
4-a |
a |
a(a-1)-(a-2)(a+2) |
a(a-2)2 |
a |
4-a |
4-a |
a(a-2)2 |
a |
4-a |
1 |
(a-2)2 |
3 |
1 |
3 |
x-3 |
x-2 |
5 |
x-2 |
3 |
2 |
| ||
4 |
a2-1 |
a+3 |
a+1 |
2 |
x |
x+2 |
x2-x |
x2+4x+4 |
x |
x-1 |
3 |
1+a |
1-a2 |
2 |
1-a |
1 |
2 |
uv |
u+v |
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