| (1) | | | | | | | | | | | | | | | | | | | | | | | | | ( | v | − | 3 | ) | ( | v | − | 2 | ) | − | ( | v | + | 6 | ) | ( | v | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (2) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 5 | y | − | 8 | ) | ( | 10 | y | − | 9 | ) | + | ( | −8 | y | + | 3 | ) | ( | −2 | y | − | 7 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | 50 | y | − | 125 | y | + | 72 | + | ( | 16 | y | + | 50 | y | − | 21 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | − | w | + | 2 | ) | ( | 9 | w | − | 5 | ) | − | ( | 2 | w | − | 4 | ) | ( | − | w | − | 7 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (4) | | | | | | | | | | | | | | | | | | | | | | | | | ( | x | + | 10 | ) | ( | x | − | 10 | ) | − | ( | x | + | 8 | ) | ( | x | − | 3 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | ( | x | + | 9 | ) | ( | x | − | 9 | ) | + | ( | x | − | 10 | ) | ( | x | − | 4 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 2 | a | + | 10 | ) | ( | −3 | a | + | 2 | ) | + | ( | 3 | a | + | 3 | ) | ( | 6 | a | + | 5 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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