| | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 10 | × | 4 | x | − | 10 | × | 8 | − | 5 | × | 7 | x | − | 5 | × | 8 | = | 5 | x | − | 120 | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | × | 2 | u | + | 6 | × | 2 | v | + | 10 | × | 4 | u | + | 10 | × | 4 | v | = | 52 | u | + | 52 | v | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 2 | × | 5 | x | − | 2 | × | 5 | y | + | 4 | × | 4 | x | + | 4 | × | 6 | y | = | 26 | x | + | 14 | y | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (4) | | | | | | | | | | | | | | | | | | | | | | | | 8 | ( | u | − | 2 | v | + | 4 | ) | + | 6 | ( | 4 | u | − | 10 | v | − | 1 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 8 | u | − | 8 | × | 2 | v | + | 8 | × | 4 | + | 6 | × | 4 | u | − | 6 | × | 10 | v | − | 6 | = | 32 | u | − | 76 | v | + | 26 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 8 | × | 10 | u | − | 8 | × | 2 | v | − | 2 | × | 8 | u | − | 2 | × | 2 | v | = | 64 | u | − | 20 | v | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 10 | × | 8 | p | + | 10 | q | − | 10 | × | 9 | + | 7 | × | 2 | p | − | 7 | q | + | 7 | × | 4 | = | 94 | p | + | 3 | q | − | 62 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
|
|