Phân tích đa thức a4+a3+a3b+a2b thành nhân tử bằng phương pháp nhóm hạng tử

Read the following passage and Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.The robot revolution isn’t a thing of the future - robots are taking over right now and the...

Read the following passage and Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43.

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 from 34 to 38.Amy Johnson was born in 1903 and grew up in Hull, England. The...

He’s a respected athlete; he’s won the world tennis championship for the third successful year.

Electric bikes are becoming increasingly popular nowadays thanks to its convenience.

Mary helps her grandmother to grow some kinds of vegetables last weekend.

Stockholm dwellers are fortunate to live in one of the greenest capitals in the world.