| ( | 121 10 | − | 2 | x | ) | ( | 303 10 | + | 2 | x | ) | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 11499 50 | ( | 121 10 | − | 2 | x | ) | = | 6122 5 |
| 方程左边 = | 121 10 | ( | 303 10 | + | 2 | x | ) | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x | ( | 303 10 | + | 2 | x | ) | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 11499 50 | ( | 121 10 | − | 2 | x | ) |
| = | 121 10 | × | 303 10 | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | + | 121 10 | × | 2 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x | ( | 303 10 | + | 2 | x | ) |
| = | 36663 100 | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x | ( | 303 10 | + | 2 | x | ) | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) |
| = | 36663 100 | × | 121 10 | ( | 121 10 | − | 2 | x | ) | + | 36663 100 | × | 2 | x | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 |
| = | 4436223 1000 | ( | 121 10 | − | 2 | x | ) | + | 36663 50 | x | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x | ( | 303 10 | + | 2 | x | ) |
| = | 4436223 1000 | × | 121 10 | − | 4436223 1000 | × | 2 | x | + | 36663 50 | x | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) |
| = | 536782983 10000 | − | 4436223 500 | x | + | 36663 50 | x | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x |
| = | 536782983 10000 | − | 4436223 500 | x | + | 36663 50 | x | × | 121 10 | − | 36663 50 | x | × | 2 | x | + | 121 5 | x |
| = | 536782983 10000 | − | 4436223 500 | x | + | 4436223 500 | x | − | 36663 25 | x | x | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) |
| = | 536782983 10000 | − | 0 | x | − | 36663 25 | x | x | + | 121 5 | x | ( | 121 10 | + | 2 | x | ) | ( | 121 10 | − | 2 | x | ) | − | 2 | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 121 5 | x | × | 121 10 | ( | 121 10 | − | 2 | x | ) | + | 121 5 | x | × | 2 | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 14641 50 | x | ( | 121 10 | − | 2 | x | ) | + | 242 5 | x | x | ( | 121 10 | − | 2 | x | ) | − | 2 |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 14641 50 | x | × | 121 10 | − | 14641 50 | x | × | 2 | x | + | 242 5 |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 242 5 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 242 5 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | + | 1771561 500 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | − | 1332331 250 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | − | 1332331 250 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |
| = | 536782983 10000 | − | 36663 25 | x | x | − | 1332331 250 | x | − | 14641 25 | x | x | + | 14641 25 | x | x |