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| (2) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −8 | c | − | 9 | ) | ( | 2 | c | − | 6 | ) | − | ( | −5 | c | + | 4 | ) | ( | −4 | c | − | 6 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | −16 | c | + | 30 | c | + | 54 | − | ( | 20 | c | + | 14 | c | − | 24 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −5 | w | − | 3 | ) | ( | −9 | w | + | 6 | ) | + | ( | 9 | w | + | 8 | ) | ( | 10 | w | + | 5 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (4) | | | | | | | | | | | | | | | | | | | | | | | | ( | 7 | u | − | 9 | ) | ( | −7 | u | + | 3 | ) | − | 3 | ( | − | u | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 3 | u | − | 8 | ) | ( | −9 | u | − | 2 | ) | + | ( | −10 | u | − | 4 | ) | ( | −4 | u | + | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −8 | x | − | 9 | ) | ( | −2 | x | − | 6 | ) | + | ( | −10 | x | − | 9 | ) | ( | 7 | x | − | 3 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | 16 | x | + | 66 | x | + | 54 | + | ( | −70 | x | − | 33 | x | + | 27 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | | ( | 2 | q | − | 5 | ) | ( | 2 | q | − | 7 | ) | + | 7 | ( | −9 | q | + | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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