đặt tính rồi tính , chỉ cách tính nehs , ko nót like đou
7092,1:45
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Question 17. Daniel __________ martial arts in the evenings.
A. is often having B. often do C. often does D. often have
Question 18. A: How often do you go to the cinema? - B: ______________
A. Yes, I love it. B. Not really.
C. Next Wednesday. D. Once or twice a month.
Question 19. I __________ chat with people I don’t know because it’s dangerous.
A. never B. sometimes C. always D. usually
Question 20. Before Tết, Vietnamese people decorate their houses __________ peach trees or apricot trees.
A. for B. by C. with D. on
Question 21. My dad __________ breakfast for my family every day.
A. is cooking B. cooks C. cook D. will cook
Question 22. On Christmas Day, children __________ Christmas presents from Santa Claus.
A. buy B. celebrate C. watch D. receive
Question 23. I want to check out the __________. All the dishes look delicious.
A. food stands B. talent show C. puppet show D. tug of war
Question 24. Brian is brilliant at dancing. He is going to sign up for the __________.
A. fashion show B. festival C. talent show D. puppet show
Question 25. During Tết, people often _________ their relatives and friends.
A. have B. visit C. invite D. go to
phân tích đa thức thành nhân tử bằng phương pháp đặt nhân tử chung(không dùng HĐT)
x3 -3x2y+3xy2 - y3
\(=xy\left(x^2-3x+3y-y^2\right)\)
\(=xy\left[\left(x-y\right)\left(x+y\right)+3\left(x-y\right)\right]\)
\(=xy\left(x-y\right)\left(x+y+3\right)\)
\(Ht\)
nếu sai cho mik xl vì mik chx thành thục cái này
ko ko zạy cách tính đou bạn ê
Trong SGK lớp 5 có đấy bạn
KO Í MIK LAK TRÌNH BÀY PHÉP TÍNH MAK BN ƠI