| | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 6 | × | 4 | x | + | 6 | × | 5 | − | 8 | × | 10 | x | − | 8 | × | 4 | = | −56 | x | − | 2 | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| (2) | | | | | | | | | | | | | | | | | | | | | | | | | 10 | ( | 5 | p | − | 4 | q | − | 7 | ) | + | 8 | ( | 5 | p | − | 6 | q | + | 9 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 10 | × | 5 | p | − | 10 | × | 4 | q | − | 10 | × | 7 | + | 8 | × | 5 | p | − | 8 | × | 6 | q | + | 8 | × | 9 | = | 90 | p | − | 88 | q | + | 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 7 | × | 10 | p | + | 7 | × | 2 | q | + | 9 | × | 9 | p | − | 9 | × | 4 | q | = | 151 | p | − | 22 | q | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
|
|
| (5) | | | | | | | | | | | | | | | | | | | | | | | | | 2 | ( | 5 | u | − | 8 | v | − | 7 | ) | − | 9 | ( | 3 | u | + | 6 | v | + | 5 | ) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 2 | × | 5 | u | − | 2 | × | 8 | v | − | 2 | × | 7 | − | 9 | × | 3 | u | − | 9 | × | 6 | v | − | 9 | × | 5 | = | −17 | u | − | 70 | v | − | 59 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 3 | × | 8 | p | − | 3 | × | 9 | + | 10 | × | 9 | p | + | 10 | × | 3 | = | 114 | p | + | 3 | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 5 | × | 5 | u | − | 5 | × | 6 | v | − | 8 | × | 5 | u | + | 8 | × | 6 | v | = | −15 | u | + | 18 | v | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|