| (1) | | | | | | | | | | | | | | | | | | | | | | | | | ( | c | − | 1 | ) | ( | c | + | 1 | ) | + | ( | c | − | 2 | ) | ( | c | + | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (2) | | | | | | | | | | | | | | | | | | | | | | | | | ( | r | + | 3 | ) | ( | r | − | 2 | ) | + | ( | r | − | 10 | ) | ( | r | − | 7 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | ( | a | + | 1 | ) | ( | a | − | 7 | ) | − | ( | a | + | 2 | ) | ( | a | + | 4 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 10 | x | + | 2 | ) | ( | −2 | x | − | 6 | ) | + | ( | 8 | x | − | 6 | ) | ( | 4 | x | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | −20 | x | − | 64 | x | − | 12 | + | ( | 32 | x | + | 56 | x | − | 60 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | ( | c | + | 10 | ) | ( | c | − | 10 | ) | + | ( | c | − | 7 | ) | ( | c | − | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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