x | ( | 1 | − | x | ) | ( | 1 | − | x | ) | = | 25 | ( | 4 5 | − | x | ) | × | 3 5 | × | 3 5 | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
方程左边 = | x | × | 1 | ( | 1 | − | x | ) | − | x | x | ( | 1 | − | x | ) |
= | x | × | 1 | × | 1 | − | x | × | 1 | x | − | x | x | ( | 1 | − | x | ) |
= | x | × | 1 | − | x | × | 1 | x | − | x | x | ( | 1 | − | x | ) |
= | 1 | x | − | x | × | 1 | x | − | x | x | × | 1 | + | x | x | x |
1 | x | − | x | × | 1 | x | − | x | x | × | 1 | + | x | x | x | = | 25 | ( | 4 5 | − | x | ) | × | 3 5 | × | 3 5 | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
方程右边 = | 9 | ( | 4 5 | − | x | ) | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
1 | x | − | x | × | 1 | x | − | x | x | × | 1 | + | x | x | x | = | 9 | ( | 4 5 | − | x | ) | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
方程右边 = | 9 | × | 4 5 | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 36 5 | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 36 5 | × | 3 5 | ( | 3 5 | − | x | ) | − | 36 5 | x | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 108 25 | ( | 3 5 | − | x | ) | − | 36 5 | x | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 108 25 | × | 3 5 | − | 108 25 | x | − | 36 5 | x | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 324 125 | − | 108 25 | x | − | 36 5 | x | ( | 3 5 | − | x | ) | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 324 125 | − | 108 25 | x | − | 36 5 | x | × | 3 5 | + | 36 5 | x | x | − | 9 | x | ( | 3 5 | − | x | ) |
= | 324 125 | − | 108 25 | x | − | 108 25 | x | + | 36 5 | x | x | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 324 125 | − | 216 25 | x | + | 36 5 | x | x | − | 9 | x | ( | 3 5 | − | x | ) | ( | 3 5 | − | x | ) |
= | 324 125 | − | 216 25 | x | + | 36 5 | x | x | − | 9 | x | × | 3 5 | ( | 3 5 | − | x | ) | + | 9 | x |
= | 324 125 | − | 216 25 | x | + | 36 5 | x | x | − | 27 5 | x | ( | 3 5 | − | x | ) | + | 9 | x | x |
= | 324 125 | − | 216 25 | x | + | 36 5 | x | x | − | 27 5 | x | × | 3 5 | + | 27 5 | x | x |
= | 324 125 | − | 216 25 | x | + | 36 5 | x | x | − | 81 25 | x | + | 27 5 | x | x | + | 9 |
= | 324 125 | − | 297 25 | x | + | 36 5 | x | x | + | 27 5 | x | x | + | 9 | x | x |
= | 324 125 | − | 297 25 | x | + | 36 5 | x | x | + | 27 5 | x | x | + | 9 | x | x |
= | 324 125 | − | 297 25 | x | + | 36 5 | x | x | + | 27 5 | x | x | + | 27 5 | x | x |
1 | x | − | x | × | 1 | x | − | x | x | × | 1 | + | x | x | x | = | 324 125 | − | 297 25 | x | + | 36 5 | x | x | + | 27 5 | x | x | + | 27 5 | x | x |
x= | 2 5 |