viết dưới dạng bình phương của một tổng hoặc bình phương của một hiệu 4*x^2*y^2+8*x*y+4

Give the correct form of the words

2045 - 46200 : 275 bằng bao nhiêu vậy ạ cho mình xin câu trả lời gấp ạ

1. She/ not stand/ kept/ wait/ such/ long time/ ______________________________________________ 2. America/ said/ discovered/ 1498/ Columbus/ ______________________________________________ 3. I/ have/ air-conditioner/ fix/ tomorrow/ ______________________________________________ 4. She/ decide/ go back/ shop/ buy/ long dress/ ______________________________________________ 5. I/ pleased/ hear/ you/ offer/ job/ assistant manager/ ______________________________________________ 6. It/ worth/ try/ make/ change/ her mind/ ______________________________________________ 7. There/ no point/ persuade/ her/ go/ us/ ______________________________________________ 8. We’d prefer/ play tennis/ rather/ watch/ it/ TV/ ______________________________________________ 9. I/ just/ finish/ read/ long novel/ write/ Arthur Hailey/ ______________________________________________ 10. I/ regret/ inform/ you/ your application/ refused/ ______________________________________________ giúp em với ạ em cảm ơn

qua đỉnh C của hình bình hành ABCD kẻ đường thẳng song song với BD , cắt AB ở E,cắt AD ở F a, tứ giác BECD là hình gì . vì sao? b, cm rằng ba đường thẳng AC,BF,DE đồng quy

VI. There is one mistake in each sentence. Underline and correct the mistake. 1. A lot of people are good artists and they are successfully in life. 2. Music promote creativity, social development, and personality. 3. The Mona Lisa is a portrait paint by the Italian artist Leonardo da Vinci. 4. Your violin is the same with the one I’ve just bought. 5. My mother doesn’t like rock music and I don’t too. 6. The weather of Hong Kong is different from that of Canada’s. 7. How long do you go to the movies? - Twice a month. 8. The weather today is not so hot as it is yesterday.

Choose A, B, C or D to complete the passage. I believe that it is (1)……………..to wear uniforms when students are at school. Firstly, (2)…………..encourage the children to take pride in being students of the school they are going to (3)……………they are wearing uniforms with labels bearing their school’s name. Secondly, wearing uniforms helps students feel (4)……………..in many ways. They all start(5)…………….the same place no matter they are rich or poor. They are really friends to one another (6)…………one school roof. Last but not least, it is (7)……………to wear uniforms. It doesn’t take you time to think what to wear everyday. In conclusion, all students, from primary to high school should (8)…………uniforms. 1. A. importance B. unimportance C. important D. unimportant 2. A. uniforms B. clothes C. shirts D. blouses 3. A. so B. because C. and D. but 4. A. happy B. lucky C. equal D. interesting 5. A. in B. on C. at D. from 6. A. at B. in C. on D. under 7. A. exciting B. practical C. terrible D. fashionable 8. A. wear B. wearing C. to wear D. wore

các bạn giúp mik vs nha. mik sẽ cho 5* cho người làm nhanh nhất và đúng nhất nha.!

Phân tích đa thức thành nhân tử a)25x^3y^2-15x^2y^3+20x^2y^2 b)5x^2(x-2y)-15x(x-2y) c)x^2+6xy+9y^2

tìm x x nhân 6.3=187 1602:x =7.2