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| (2) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −4 | b | + | 10 | ) | ( | −2 | b | + | 3 | ) | − | ( | 2 | b | + | 9 | ) | ( | 7 | b | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 7 | y | − | 1 | ) | ( | 3 | y | − | 4 | ) | + | ( | 10 | y | − | 3 | ) | ( | 7 | y | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (4) | | | | | | | | | | | | | | | | | | | | | | | | | ( | w | + | 5 | ) | ( | w | − | 5 | ) | + | ( | w | + | 2 | ) | ( | w | − | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | ( | 4 | u | + | 5 | ) | ( | 3 | u | + | 4 | ) | − | 9 | ( | −6 | u | + | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 5 | x | − | 8 | ) | ( | 10 | x | − | 9 | ) | + | ( | −8 | x | − | 1 | ) | ( | −6 | x | − | 6 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | | ( | 4 | z | − | 7 | ) | ( | 3 | z | + | 1 | ) | − | 10 | ( | 6 | z | − | 4 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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