Tim số nguyên dương bé nhât có tận cung bang 56, chia hết cho 56 va tổng các chữ số của nó bằng 56.

What will happen if there is no energy on the Earth

Tet is the most popular festival in the Asian.We have Tet between February and March.Before Tet, people often buy a peach blossom and many colorful lights. To prepare Tet, they often cook Chung Cake and many special food.On 30^th December Lunar year,people workship to thanks their god, say goodbye to the old year and welcome the New Year. Tet last 10 days.At Tet, the children have many lucky money from adult and eat many good food.People go to their relatives' houses.Before Tet, I feel very happy because I have many lucky money and eat many delicious food.Attend Tet and you will have fun.

xy=x/y =>y² =1 =>y = -1 (loại y=1)

thay vao ta tinh duoc x = 1/2

vậy x=1/2

y = -1