m±2
|
a |
b |
a |
b |
n |
m±2
|
(
|
a |
b |
7+4
|
7+4
|
7+2
|
4 |
3 |
4 |
3 |
12 |
7+4
|
7+2
|
(
|
3 |
4-2
|
9+4
|
19-4
|
4-2
|
3+1-2
|
(
|
3 |
9+4
|
5+4+4
|
(
|
5 |
3 |
5 |
19-2
|
(
|
15 |
2 |
2 |
a2 |
b |
b2 | ||
|
|
|
| ||
|
| ||
|
(
| ||||
|
x+y | ||
|
-3 | ||
|
3 |
2 |
2 |
1 |
a |
|
1 |
5 |
1 |
a |
|
1 |
a |
(
|
1 |
a |
1 |
a |
2 |
a |
49 |
5 |
1 |
a |
|
1 |
a |
(a-
|
1 |
a |
1 |
a |
1 |
5 |
2 |
1-2a+a2 |
a-1 |
| ||
a2-a |
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