(x+y).x^2-y^3.(x+y)+(x^2-y^2)+3 biết x+y=10

giup em bai nay a em can gap ( x - 15 ) mu 4 = ( x- 15 ) mu 2

Ai giúp mình với ạ Giúp mình với nhé

ĐỊA 8 Câu 1: Nêu đặc điểm chung của địa hình nước ta. Vì sao nói đồi núi là bộ phận quan trọng nhất của cấu trúc địa hình Việt Nam. Núi nước ta chạy theo mấy hướng chính, kể tên.

Trong cấu trúc siêu hiển vi của NST ở sinh vật nhân thực, sợi chất nhiễm sắc có đường kính: A. 11nm B. 300nm C. 30nm D. 700nm

Make questions from underlined words 31.I'd like (chicken and pork) for lunch. ............................................................................................................................. ........ 32.The doctor will give her (some medicine) to make her feel better. ............................................................................................................................. ........ 33.Ba went to the doctor's (because he was sick). ............................................................................................................................. ........ Finish the second sentence. Keep its meaning similar to the above 34.That dirt can make you sick. You can ....................................................................................................................... 35.I like cucumbers, tomatoes and salad. My favorite .................................................................................................................. 36.I like fruits and My father also likes them. I like fruits and .............................................................................................................

Cho tam giác ABC có  . AB< AC Gọi M là trung điểm của . BC Chứng minh rằng MAB>MAC

I. Choose the best words by circling the letter A,B,C or D. 1. How …….. is it from your house to school? A. far B. long C. old D. tall 2. What ……… intelligent boy! A. the B. a C. an D. is 3. Where do you live, Lan?- I live …………Vinh Dieu. A. on B. in C. at D. of 4. This car is the ……. expensive of the four car. A. best B. more C. good D. most 5. Hoa has a …….. of friends in Hue. A .lot B. some C. many D. much 6. Ba likes…… on his next birthday. A .sing B singing C. sings D. sang 7. When do we have English? - We have it………..Monday, Wednesday and Friday. A. in B. at C. on D. between 8. Stop, please. There is …………….coffee. – I’m sorry, sir. A. too much B. a little C. a few D .a lot of II. Write sentences using the words given 1. Minh/ like/ listen /music. .................................................................................................................. 2. Chi/ prefer/ watching TV/ playing sports. ...................................................................................................... 3. She / go/ school/ 5 days a week. ............................................................................................................ 4. We/ learn/ English/ 3 years/ ago. ............................................................................................................. III. Read the passage carefully: Marie was born in Poland in 1867. She learnt to read when she was 4 years old. She was intelligent and had an excellent memory. She finished high school when she was only 15 years old. When she grew up, Marie went to Paris to study Mathematics and Chemistry at the University. She won the Nobel Prize for Physics in 1903 and 8 years later she received the Nobel Prize for Chemistry. Marie Curie died in 1934. *.Answer the questions: a. When did she finish high school? ........................................................................................................................... b. What did she win in 1903? ........................................................................................................................... IV. Give the correct form of the verbs in the brackets 1. My brother (work)............................... in Hue few years ago. 2. How often ................Nam (play) .......................sports? - Once a week. 3. They (watch) ...........................................TV now. 4. Minh and Lan (visit)................................. their friends next Sunday.

Giúp tui vs mấy bạn giỏi toánnnn

làm 2 bài tập : 2,3, nhanh nha tớ sắp nộp rùi