(1) | | | | | | | | | | | | | | | | | | | | | | | | 8 | ( | 9 | u | + | 2 | v | + | 8 | ) | − | 3 | ( | 3 | u | + | 4 | v | − | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 8 | × | 9 | u | + | 8 | × | 2 | v | + | 8 | × | 8 | − | 3 | × | 3 | u | − | 3 | × | 4 | v | + | 3 | × | 8 | = | 63 | u | + | 4 | v | + | 88 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | p | + | 6 | × | 4 | q | + | 6 | × | 3 | − | 2 | p | + | 2 | × | 4 | q | − | 2 | × | 2 | = | 4 | p | + | 32 | q | + | 14 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(4) | | | | | | | | | | | | | | | | | | | | | | | | 7 | ( | 6 | x | + | 6 | y | − | 9 | ) | + | 8 | ( | 7 | x | + | 7 | y | − | 2 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 7 | × | 6 | x | + | 7 | × | 6 | y | − | 7 | × | 9 | + | 8 | × | 7 | x | + | 8 | × | 7 | y | − | 8 | × | 2 | = | 98 | x | + | 98 | y | − | 79 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | × | 8 | a | − | 6 | × | 3 | b | + | 2 | × | 3 | a | + | 2 | × | 10 | b | = | 54 | a | + | 2 | b | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(6) | | | | | | | | | | | | | | | | | | | | | | | 3 | ( | 4 | x | − | 5 | y | − | 10 | ) | − | 2 | ( | x | − | 9 | y | − | 4 | ) | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 3 | × | 4 | x | − | 3 | × | 5 | y | − | 3 | × | 10 | − | 2 | x | + | 2 | × | 9 | y | + | 2 | × | 4 | = | 10 | x | + | 3 | y | − | 22 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 2 | × | 6 | p | − | 2 | q | − | 2 | × | 5 | − | 3 | × | 9 | p | + | 3 | q | − | 3 | × | 9 | = | −15 | p | + | q | − | 37 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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