When the following Chinese characters represent what number, the vertical form on the right holds? (Note: each character represents a number, different characters represent different numbers, and the same character represents the same number.) Beauty = () River = () good = () mountain = () Beautiful rivers and mountains × 9 —————— Beautiful mountains and rivers

When the following Chinese characters represent what number, the vertical form on the right holds? (Note: each character represents a number, different characters represent different numbers, and the same character represents the same number.) Beauty = () River = () good = () mountain = () Beautiful rivers and mountains × 9 —————— Beautiful mountains and rivers

Beauty = (1) River = (8) good = (0) mountain = (9)

The Chinese characters in the following vertical patterns each represent a different number. When you think about what number they represent, the formula will hold
Happy summer vacation x9 = happy holiday, summer vacation + happy + happy degree + happy spend = 2005 open + X heart + degree + pass = 15 see you in the new semester + X see you in the new semester = see you in the new year

Happy summer vacation = 1089
Happy life = 1806
Open + X heart + degree + pass = 15 new term see + X new term see = year see period see
What's the X in it
Do not understand

In the right multiplication formula, each box should be filled with a number, and each Chinese character represents a number (different Chinese characters represent different numbers, and the same Chinese character represents the same number). Then, the final product of the multiplication formula is

Where is the formula on the right

Using multiplication formula
（2x+y-3)²

（2x+y-3)²
=[2x+(y-3)]²
=4x²+4x(y-3)+(y-3)²
=4x²+4xy-12x+y²-6y+9