(1) | | | | | | | | | | | | | | | | | | | | | | | 8 | ( | 7 | p | − | 6 | q | + | 5 | ) | + | 6 | ( | p | − | 10 | q | − | 10 | ) | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 8 | × | 7 | p | − | 8 | × | 6 | q | + | 8 | × | 5 | + | 6 | p | − | 6 | × | 10 | q | − | 6 | × | 10 | = | 62 | p | − | 108 | q | − | 20 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(2) | | | | | | | | | | | | | | | | | | | | | | | | 6 | ( | 2 | x | − | 4 | y | + | 3 | ) | − | 4 | ( | 9 | x | + | 7 | y | − | 7 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | × | 2 | x | − | 6 | × | 4 | y | + | 6 | × | 3 | − | 4 | × | 9 | x | − | 4 | × | 7 | y | + | 4 | × | 7 | = | −24 | x | − | 52 | y | + | 46 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(3) | | | | | | | | | | | | | | | | | | | | | | | | 6 | ( | 8 | u | − | 8 | v | + | 1 | ) | + | 5 | ( | 3 | u | + | 4 | v | + | 5 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | × | 8 | u | − | 6 | × | 8 | v | + | 6 | + | 5 | × | 3 | u | + | 5 | × | 4 | v | + | 5 | × | 5 | = | 63 | u | − | 28 | v | + | 31 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | = | 9 | × | 10 | p | + | 9 | × | 9 | + | 7 | × | 4 | p | − | 7 | × | 9 | = | 118 | p | + | 18 | | | | | | | | | | | | | | | | | | | | | | | | | |
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(5) | | | | | | | | | | | | | | | | | | | | | | | 4 | ( | 7 | p | + | 8 | q | − | 10 | ) | + | 10 | ( | 7 | p | + | q | + | 10 | ) | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 4 | × | 7 | p | + | 4 | × | 8 | q | − | 4 | × | 10 | + | 10 | × | 7 | p | + | 10 | q | + | 10 | × | 10 | = | 98 | p | + | 42 | q | + | 60 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | = | 10 | × | 5 | x | + | 10 | × | 10 | − | 3 | × | 6 | x | − | 3 | × | 3 | = | 32 | x | + | 91 | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | = | 10 | × | 3 | u | + | 10 | × | 2 | − | 2 | × | 3 | u | − | 2 | × | 5 | = | 24 | u | + | 10 | | | | | | | | | | | | | | | | | | | | | | | | | |
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