( | ( | 72869 20 | − | X | − | 613993 100 | ) | ÷ | 613993 100 | ) | × | 1 2 | = | ( | ( | 1672 | + | X | ) | − | 371613 100 | ) | ÷ | 371613 100 |
方程左边 = | ( | 72869 20 | − | X | − | 613993 100 | ) | ÷ | 613993 100 | × | 1 2 |
= | ( | 72869 20 | − | X | − | 613993 100 | ) | × | 50 613993 |
= | 72869 20 | × | 50 613993 | − | X | × | 50 613993 | − | 613993 100 | × | 50 613993 |
= | 364345 1227986 | − | X | × | 50 613993 | − | 613993 1227986 |
= | - | 124824 613993 | − | 50 613993 | X |
- | 124824 613993 | − | 50 613993 | X | = | ( | ( | 1672 | + | X | ) | − | 371613 100 | ) | ÷ | 371613 100 |
方程右边 = | ( | 1672 | + | X | ) | × | 100 371613 | − | 371613 100 | × | 100 371613 |
= | ( | 1672 | + | X | ) | × | 100 371613 | − | 11261 11261 |
= | 1672 | × | 100 371613 | + | X | × | 100 371613 | − | 11261 11261 |
= | 15200 33783 | + | X | × | 100 371613 | − | 11261 11261 |
= | - | 18583 33783 | + | 100 371613 | X |
- | 124824 613993 | − | 50 613993 | X | = | - | 18583 33783 | + | 100 371613 | X |
- | 50 613993 | X | − | 100 371613 | X | = | - | 18583 33783 | + | 124824 613993 |
X= | √977680552 √999 |