cho x+y =3 và x.y =2 . Tính A =x^3 +y^3

Giúp mình với mình cần gấp ạ :))

Vẽ cho mình pic sau nha mình sẽ vote 5*

Tìm tất cả các cặp số nguyên tố (p,q) thỏa mãn p^3+ q3 +1 = p2q2

Mn làm giúp mình bài 2 với mình cần gấp, cảm ơn ạ

C =căn chung của 4- √15 D=căn chung của 8- √55 E=căn chung của 6+ √35

Bài 4: Tìm lỗi sai 1. Yesterday I meet Mr. Tan at the supermarket. He bought some cloths for the festival this morning 2. My best friend get the accident last night. He is staying at home now. 3. I often went to the library to borrow books on weekend. 4. Look! A horse runs on the street 5. He already finishes his homework. 6. My brother asks me to pick up him at the dormitory 3 hours ago 7. Where is Tony, Jane? He taking some photographs in the garden! 8. The earth was a planet. 9. We miss the bus. Now we'll have to walk. 10. Why didn’t Tom went to school this morning? Because he was sick

Dãy số tự nhiên từ 1 đến 2009 có bao nhiêu chữ số 2

Giúp mình với mình ko biết tìm D1.Mn nhớ là chưa có C1 nha nên phải chứng minh giúp mình nhé!!

Ex1: Word formation: Sue the correct form of the verb in the bracket 1.The________ have to cook rice in this contest( participate) 2. There were two________ yesterday: fire making and rice cooking ( compete) 3. The _________ of the house is very kind to us( own) 4. My __________ will call you later( assist) 5. An( orphanage) ____________ is a child whose pareants are dead 6. I'd like to live here because I have many_______ ( friendship) 7. An___________ is the person who fight for the beauty of nature( environment ) 8. Barack Obama is a famous _________( politics) 9. My mother is a __________ and a _________( reception- telephone) 10. Her older sister is a speech_______( therapy) 11. Nam was punished because he had behaved____________ toward the visitors( polite) 12. It is________ for us to finish all the assignment in such a short period of time( possibility) 13. If you continue to be _________, we won't trust you anymore.( honest) 14.She is an_________ child, I don't want my children to make friends with her. ( obedience) 15. It was ________ of her to leave her son with care.( responsibility)