1 . ( 2x² - 1) ²  - ( x+1 ) ² = 0

2 . 27x³ -54x² + 36x =9

3 . x² + 8x + 7 = 0

1 . x² + 8x +7 = 0

2 . 9x³ - 6x² + x = 0

3 . 36x² + 1 = 12x

Bộ máy nhà nước gồm những loại cơ quan nào? Mỗi loại cơ quan gồm những cơ quan cụ thể nào?

People hold many traditional festivals around the world every year. *

Many traditional festivals are held around the world every year.

Many traditional festivals were held around the world every year.

Many traditional festivals is held around the world every year.

Many traditional festivals was held around the world every year.

Choose the word that has the different stress from the others *

gripping

boring

noisy

alone