a+1 |
a2-a |
a |
a2-2a+1 |
1 |
a |
3 |
a+1 |
a(a-1) |
a |
(a-1)2 |
a+1 |
a(a-1) |
a2 |
(a-1)2 |
(a+1)(a-1) |
(a-1)2 |
a2 |
(a-1)2 |
a2-1-a2 |
(a-1)2 |
1 |
(a-1)2 |
3 |
1 | ||
(
|
1 |
3 |
8 |
x+1 |
x+3 |
x+1 |
2 |
x2-6x |
x+2 |
x2-4 |
x2+4x+4 |
3 |
x2-2x |
x2-4 |
2x-4 |
x+2 |
2 |
1 |
a-1 |
a |
a2-2a+1 |
A.a+1 | B.
| C.
| D.a-1 |
2a+1 |
a2-1 |
1 |
1-a |
2 |
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