a.x(y+2) = 8

 Tích x(y+2) có thể bằng các tích sau : 2.4 ; 8 . 1 

  Nếu tích x(y+2) = 2.4 thì :

+ Để vế trong ngoặc tròn bằng 4 thì y = 2

+ Để vế trong ngoặc tròn bằng 2 thì y = 0

 Nếu vế trong ngoặc tròn có giá trị bằng 4 thì x = 2

 Nếu vế trong ngoặc tròn có giá trị bằng x = 4

I often look up at the sky. And what I think when I look at the sky is that I might be 15cm taller because I'm only 147cm. I often see clouds in my country, sometimes not at all. The sky is overcast where I am very rarely if it is overcast, usually in the rainy season from June to September, it rains a lot. I only watch the sunset 3 times a week in my country, and the sunrise only 2 times a week because I often sleep in and rarely get up early.

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