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| (3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 3 | v | − | 7 | ) | ( | −6 | v | + | 9 | ) | + | ( | 3 | v | + | 7 | ) | ( | −10 | v | + | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | −18 | v | + | 69 | v | − | 63 | + | ( | −30 | v | − | 64 | v | + | 14 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (4) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 9 | x | − | 1 | ) | ( | −7 | x | + | 2 | ) | − | ( | 10 | x | − | 4 | ) | ( | −10 | x | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | −63 | x | + | 25 | x | − | 2 | − | ( | −100 | x | + | 140 | x | − | 40 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | | | | | | | | | ( | u | + | 3 | ) | ( | u | − | 3 | ) | + | ( | u | + | 8 | ) | ( | u | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | | | | | | | | | ( | a | + | 8 | ) | ( | a | − | 8 | ) | + | ( | a | + | 3 | ) | ( | a | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( | 10 | p | − | 7 | ) | ( | −10 | p | + | 7 | ) | + | ( | 7 | p | + | 4 | ) | ( | −5 | p | + | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | = | −100 | p | + | 140 | p | − | 49 | + | ( | −35 | p | + | 36 | p | + | 32 | ) | | | | | | | | | | | | | | | | | | | | | | | | | |
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