3 | ÷ | X | + | 1 | ÷ | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 2 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | + | 1 | ÷ | ( | X | + | 4 | ) | + | 3 | ÷ | ( | X | + | 5 | ) | = | 0 |
方程两边同时乘以: | X |
3 | + | 1 | ÷ | ( | X | + | 1 | ) | × | X | + | 4 | ÷ | ( | X | + | 2 | ) | × | X | + | 4 | ÷ | ( | X | + | 3 | ) | × | X | + | 1 | ÷ | ( | X | + | 4 | ) | = | 0 |
方程两边同时乘以: | ( | X | + | 1 | ) |
3 | ( | X | + | 1 | ) | + | 1 | X | + | 4 | ÷ | ( | X | + | 2 | ) | × | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | × | X | ( | X | + | 1 | ) | = | 0 |
3 | X | + | 3 | × | 1 | + | 1 | X | + | 4 | ÷ | ( | X | + | 2 | ) | × | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | = | 0 |
3 | X | + | 3 | + | 1 | X | + | 4 | ÷ | ( | X | + | 2 | ) | × | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | × | X | = | 0 |
4 | X | + | 3 | + | 4 | ÷ | ( | X | + | 2 | ) | × | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | × | X | ( | X | + | 1 | ) | + | 1 | = | 0 |
方程两边同时乘以: | ( | X | + | 2 | ) |
4 | X | ( | X | + | 2 | ) | + | 3 | ( | X | + | 2 | ) | + | 4 | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | × | X | ( | X | + | 1 | ) | = | 0 |
4 | X | X | + | 4 | X | × | 2 | + | 3 | ( | X | + | 2 | ) | + | 4 | X | ( | X | + | 1 | ) | + | 4 | = | 0 |
4 | X | X | + | 8 | X | + | 3 | ( | X | + | 2 | ) | + | 4 | X | ( | X | + | 1 | ) | + | 4 | ÷ | ( | X | + | 3 | ) | = | 0 |
方程两边同时乘以: | ( | X | + | 3 | ) |
4 | X | X | ( | X | + | 3 | ) | + | 8 | X | ( | X | + | 3 | ) | + | 3 | ( | X | + | 2 | ) | ( | X | + | 3 | ) | + | 4 | X | = | 0 |
4 | X | X | X | + | 4 | X | X | × | 3 | + | 8 | X | ( | X | + | 3 | ) | + | 3 | = | 0 |
4 | X | X | X | + | 12 | X | X | + | 8 | X | ( | X | + | 3 | ) | + | 3 | ( | X | + | 2 | ) | = | 0 |
方程两边同时乘以: | ( | X | + | 4 | ) |
4 | X | X | X | ( | X | + | 4 | ) | + | 12 | X | X | ( | X | + | 4 | ) | + | 8 | X | ( | X | + | 3 | ) | = | 0 |
4 | X | X | X | X | + | 4 | X | X | X | × | 4 | + | 12 | X | = | 0 |
4 | X | X | X | X | + | 16 | X | X | X | + | 12 | X | X | = | 0 |
方程两边同时乘以: | ( | X | + | 5 | ) |
4 | X | X | X | X | ( | X | + | 5 | ) | + | 16 | X | X | X | ( | X | + | 5 | ) | + | 12 | = | 0 |
4 | X | X | X | X | X | + | 4 | X | X | X | X | × | 5 | = | 0 |
4 | X | X | X | X | X | + | 20 | X | X | X | X | + | 16 | = | 0 |
4 | X | X | X | X | X | + | 20 | X | X | X | X | + | 16 | = | 0 |
4 | X | X | X | X | X | + | 20 | X | X | X | X | + | 16 | = | 0 |
4 | X | X | X | X | X | + | 20 | X | X | X | X | + | 16 | = | 0 |
X1= | - | 5 2 |