(1) | | | 3 | | | 1 | | | | 2 | | | 1 | | | ( | x | − | ) | ( | − | x | − | ) | | 4 | 5 | 3 | 3 | | | | | | | | | | |
|
(2) | | | | 1 | | | 1 | | | 1 | | | 1 | | | ( | − | b | + | ) | ( | b | − | ) | | 2 | 4 | 3 | 4 | | | | | | | | | | |
|
(3) | | | | 1 | | | 6 | | | | | 4 | | | 1 | | | | ( | − | x | − | y | ) | ( | − | x | − | y | ) | | 4 | 5 | 5 | 4 | | | | | | | | | | | | | |
|
(4) | | | | 3 | | | 1 | | | | 1 | | | 1 | | | ( | − | c | − | ) | ( | − | c | − | ) | | 5 | 2 | 2 | 2 | | | | | | | | | | | |
|
(5) | | | 4 | | | 3 | | | | | 1 | | | 3 | | | | ( | x | − | y | ) | ( | − | x | + | y | ) | | 5 | 4 | 2 | 5 | | | | | | | | | | | | |
| | | | 2 | | | | 171 | | | | 9 | | | | = | − | x | + | x | y | − | y | | 5 | | 200 | 20 | | | | | | | | | | | | |
|
(6) | | | 2 | | | 1 | | | | | 1 | | | 1 | | | | ( | p | + | q | ) | ( | − | p | + | q | ) | | 5 | 4 | 2 | 5 | | | | | | | | | | | | |
|
(7) | | | | 1 | | | 2 | | | | | 1 | | | 1 | | | | ( | − | p | − | q | ) | ( | − | p | + | q | ) | | 2 | 5 | 2 | 2 | | | | | | | | | | | | | |
|