* Tham khảo :

[1-10] Fill each blank with a suitable word to complete the passage.

Many countries regard income first and foremost (1) ____as_ the primary means of determining their success in (2) ___by__ with other country. The measure divides the value of a country’s annual production (3) __comparison___ the number of people resident in the country. In 1998, however, the King of Bhutan announced that in the future his nation’s main measure of success would be happiness (4) _rather___ than income. He did this with a (5) _view____ to showing the world that money does not (6) __buy___ happiness.

A year later, the King had the fateful decision to allow television into his country. Until then, it had been banned, as (7) _almost____ all forms of advertising. But in 1999, TV sets began to be imported into the country and, as a result, people started to spend a lot of time watching television programmes. Around the (8) _same____ time, children began fighting more, crime (9) __increased___ and more (10) ___maried__ couples separated or divorced.

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Lời giải:

1. Tập xác định của phương trình

   

2. Biến đổi vế trái của phương trình

   

3. Phương trình thu được sau khi biến đổi

   

4. Đơn giản biểu thức

   

5. Giải phương trình

   

6. Lời giải thu được