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| (2) | | | | | | | | | | | | | | | | | | | | | | | | ( | −3 | z | − | 8 | ) | ( | 4 | z | − | 5 | ) | + | 4 | ( | −8 | z | + | 6 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −8 | w | + | 3 | ) | ( | − | w | + | 1 | ) | − | ( | −6 | w | + | 6 | ) | ( | − | w | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −7 | b | − | 10 | ) | ( | −5 | b | + | 1 | ) | + | ( | −2 | b | + | 8 | ) | ( | −10 | b | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | 35 | b | + | 43 | b | − | 10 | + | ( | 20 | b | − | 100 | b | + | 80 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | ( | x | + | 3 | ) | ( | x | − | 6 | ) | − | ( | x | − | 5 | ) | ( | x | − | 3 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | ( | − | z | − | 8 | ) | ( | 10 | z | − | 10 | ) | + | 6 | ( | z | + | 1 | ) | | | | | | | | | | | | | | | | | | | | | | |
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