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| (2) | | | | | | | | | | | | | | | | | | | | | | | ( | −4 | x | − | 8 | ) | ( | 7 | x | + | 5 | ) | − | ( | −10 | x | − | 5 | ) | | | | | | | | | | | | | | | | | | | | | | |
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| (4) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −4 | p | + | 6 | ) | ( | −4 | p | − | 10 | ) | − | ( | −4 | p | + | 5 | ) | ( | 9 | p | + | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | 16 | p | + | 16 | p | − | 60 | − | ( | −36 | p | + | 13 | p | + | 40 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | | ( | z | + | 2 | ) | ( | z | − | 2 | ) | + | ( | z | − | 2 | ) | ( | z | − | 9 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | ( | 4 | z | − | 9 | ) | ( | −9 | z | − | 1 | ) | − | 2 | ( | 5 | z | − | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | −10 | y | − | 5 | ) | ( | 9 | y | + | 1 | ) | + | ( | y | − | 6 | ) | ( | 10 | y | − | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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