( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | = | 0 |
方程左边 = | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | × | 49 50 | − | 69 50 | x | × | 49 50 |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 2401 2500 | − | 3381 2500 | x |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | × | 2401 2500 | − | 69 50 | x | × | 2401 2500 | − | 3381 2500 | x |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 117649 125000 | − | 165669 125000 | x | − | 3381 2500 | x |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 117649 125000 | − | 334719 125000 | x |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | × | 117649 125000 | − | 69 50 | x | × | 117649 125000 | − | 334719 125000 | x |
= | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | ( | 9161 10 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | 69 50 | x | ) | × | 49 50 | − | x | ) | × | 5764801 6250000 | − | 8117781 6250000 | x | − | 334719 125000 | x |