Trong các phương trình sau, cặp phương trình nào tương đương?

A. x = 2 và x( x - 2 ) = 0 

B. x - 2 = 0 và 2x - 4 = 0 

C. 3x = 0 và 4x - 2 = 0 

D.  x 2 - 9 = 0 và 2x - 8 = 0 

Đặt tính rồi tính 

592 +115                   856 - 347                       37 x 6                      66 : 2

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

Vietnamese footballing history has been rewritten by the country's U23 team, which secured a place in the final of the Asian Football Confederation Under-23 (AFC U23) Championship thanks to a dramatic victory (31)______ Qatar.

The Qatari team, which had won all its previous matches in the (32)______, opened the score-board with a successful penalty in the first half. (33)______, Vietnam equalized halfway through the second half with a goal from Nguyen Quang Hai. The last few minutes of the second half saw Qatar take the lead, before Hai once again scored the equalizer for Vietnam to bring the match to (34)______ time, which ended goalless.

In the penalty shootout, the Vietnamese team (35)______ victorious after successfully converting four out of its five penalty kicks, while keeper Bui Tien Dung managed to save two penalties from the Qatari side.

Question 33:

A. Although

B. Because

C. However

D. Despite