| (1) | | | | | | | | | | | | | | | | | | | | | | | | | ( | r | − | 2 | ) | ( | r | + | 2 | ) | + | ( | r | + | 5 | ) | ( | r | + | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (2) | | | | | | | | | | | | | | | | | | | | | | | | | ( | w | + | 7 | ) | ( | w | + | 1 | ) | − | ( | w | − | 7 | ) | ( | w | − | 6 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (3) | | | | | | | | | | | | | | | | | | | | | | | | | ( | v | − | 8 | ) | ( | v | + | 8 | ) | − | ( | v | + | 1 | ) | ( | v | − | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (4) | | | | | | | | | | | | | | | | | | | | | | | | | ( | q | − | 3 | ) | ( | q | + | 3 | ) | − | ( | q | + | 8 | ) | ( | q | − | 9 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (5) | | | | | | | | | | | | | | | | | | | | | | | | | ( | y | + | 2 | ) | ( | y | − | 3 | ) | − | ( | y | − | 9 | ) | ( | y | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (6) | | | | | | | | | | | | | | | | | | | | | | | | ( | 10 | x | + | 9 | ) | ( | 7 | x | − | 9 | ) | − | 4 | ( | 5 | x | + | 4 | ) | | | | | | | | | | | | | | | | | | | | | | | |
|
|
|