x2-y2 |
x |
2xy-y2 |
x |
1 | ||
2+
|
27 |
|
3 |
(x+y)(x-y) |
x |
x2-(2xy-y2) |
x |
(x+y)(x-y) |
x |
x |
(x-y)2 |
x+y |
x-y |
2-
| ||||
(2+
|
3 |
| ||
3 |
3 |
3 |
3 |
| ||
3 |
3 |
| ||
2 |
| ||
2 |
1 |
3 |
1 |
2 |
2 |
1 |
6 |
2 |
a-1 |
a |
2a-1 |
a |
x2-2x |
x |
4 |
x |
a+1 |
a-1 |
a |
a2-2a+1 |
1 |
a |
2 |
a-2 |
a+3 |
a2-4 |
2a+6 |
5 |
a+2 |
m+1 |
2m2-2m |
2m |
m+1 |
1 |
m-1 |
1 |
m+1 |
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