50000 | ( | 1 | + | x | ) | × | 1 | ( | 1 | + | x | ÷ | 2 | ) | = | 0 |
方程左边 = | 50000 | ( | 1 | + | x | ) | ( | 1 | + | x | ÷ | 2 | ) |
50000 | ( | 1 | + | x | ) | ( | 1 | + | x | ÷ | 2 | ) | = | 0 |
方程左边 = | 50000 | × | 1 | ( | 1 | + | x | ÷ | 2 | ) | + | 50000 | x | ( | 1 | + | x | ÷ | 2 | ) |
= | 50000 | ( | 1 | + | x | ÷ | 2 | ) | + | 50000 | x | ( | 1 | + | x | ÷ | 2 | ) |
= | 50000 | × | 1 | + | 50000 | x | ÷ | 2 | + | 50000 | x | ( | 1 | + | x | ÷ | 2 | ) |
= | 50000 | + | 25000 | x | + | 50000 | x | ( | 1 | + | x | ÷ | 2 | ) |
= | 50000 | + | 25000 | x | + | 50000 | x | × | 1 | + | 50000 | x | x | ÷ | 2 |
= | 50000 | + | 25000 | x | + | 50000 | x | + | 25000 | x | x |
= | 50000 | + | 75000 | x | + | 25000 | x | x |
50000 | + | 75000 | x | + | 25000 | x | x | = | 0 |