4157 500 | × | 523 | ( | 1 2 | − | x | ) | ( | 3 5 | − | x | ) | ÷ | 200 | × | ( | 1 5 | + | x | ) | = | 273 10 |
| 方程左边 = | 2174111 100000 | ( | 1 2 | − | x | ) | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
2174111 100000 | ( | 1 2 | − | x | ) | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) | = | 273 10 |
| 方程左边 = | 2174111 100000 | × | 1 2 | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 2174111 200000 | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 2174111 200000 | × | 3 5 | ( | 1 5 | + | x | ) | − | 2174111 200000 | x | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 1000000 | ( | 1 5 | + | x | ) | − | 2174111 200000 | x | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 1000000 | × | 1 5 | + | 6522333 1000000 | x | − | 2174111 200000 | x | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 5000000 | + | 6522333 1000000 | x | − | 2174111 200000 | x | ( | 1 5 | + | x | ) | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 5000000 | + | 6522333 1000000 | x | − | 2174111 200000 | x | × | 1 5 | − | 2174111 200000 | x | x | − | 2174111 100000 | x | ( | 3 5 | − | x | ) |
| = | 6522333 5000000 | + | 6522333 1000000 | x | − | 2174111 1000000 | x | − | 2174111 200000 | x | x | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 5000000 | + | 2174111 500000 | x | − | 2174111 200000 | x | x | − | 2174111 100000 | x | ( | 3 5 | − | x | ) | ( | 1 5 | + | x | ) |
| = | 6522333 5000000 | + | 2174111 500000 | x | − | 2174111 200000 | x | x | − | 2174111 100000 | x | × | 3 5 | ( | 1 5 | + | x | ) | + | 2174111 100000 | x |
| = | 6522333 5000000 | + | 2174111 500000 | x | − | 2174111 200000 | x | x | − | 6522333 500000 | x | ( | 1 5 | + | x | ) | + | 2174111 100000 | x | x |
| = | 6522333 5000000 | + | 2174111 500000 | x | − | 2174111 200000 | x | x | − | 6522333 500000 | x | × | 1 5 | − | 6522333 500000 | x | x |
| = | 6522333 5000000 | + | 2174111 500000 | x | − | 2174111 200000 | x | x | − | 6522333 2500000 | x | − | 6522333 500000 | x | x | + | 2174111 100000 |