( | 22 | + | 2 | x | ) | ( | 29 | + | 2 | x | ) | = | 29 | × | 22 | ÷ | 4 |
方程左边 = | 22 | ( | 29 | + | 2 | x | ) | + | 2 | x | ( | 29 | + | 2 | x | ) |
= | 22 | × | 29 | + | 22 | × | 2 | x | + | 2 | x | ( | 29 | + | 2 | x | ) |
= | 638 | + | 44 | x | + | 2 | x | ( | 29 | + | 2 | x | ) |
= | 638 | + | 44 | x | + | 2 | x | × | 29 | + | 2 | x | × | 2 | x |
= | 638 | + | 44 | x | + | 58 | x | + | 4 | x | x |
= | 638 | + | 102 | x | + | 4 | x | x |
638 | + | 102 | x | + | 4 | x | x | = | 29 | × | 22 | ÷ | 4 |
方程右边 = | 319 2 |
638 | + | 102 | x | + | 4 | x | x | = | 319 2 |