Calli : ''`2NH_3 + CO_2 \overset{t^o , xt}-> CO(NH_2)_2 + H_2O`'' ________________ Viết đẹp nha , nghiêm cấm chỉ viết bút đen , app hay giấy cũng đc , xấu đương nhin báo cáo :>

Hằng đẳng thức+1 số :Biến đổi từ dạng X^2+C Giúp mình với mọi người

Supply the correct form of the verb in brackets. 1,“I (just go) ………………….out to get an evening paper.” + “But it (rain)…………………. .Why (you /not wait) …………….till the rain (stop)…………….. ? 2,When I first (come) …………..to this village, it was a quiet place. But since then the population (double) ……………..and a lot of leisure facilities (build)……………………….. 3,Goodbye, Diana, I (never forget) …………….you. I (miss)……………you more than anyone I ever (know)……………………….. in my life. 4,I’m sorry I haven’t got any money (lend)……………….. you. Why don’t you try (ask)……………….. Tom? 5,They suggested (abolish) ……………………… income tax. 6,The teller was made (lie)………………………. down on the floor. 7,I always remember (work)…………………….. with those nice people. 8,Your shirt needs (wash)……………………….It’s so dirty. 9,If you bet on that horse, you risk (lose) …………………. every penny you’ve got. 10,I’d rather you (not wear) ……………………… jeans to the office.

Vif sao m >0 thì đổi dấu từ dương sang âm ạ. Có tham số m thì sao bik dc v

√(x-2)+ √(4-x) + √(2x-5) = 2x^2-5x

Alice didn't expect ________ to Bill's party. a. asking b. being asked c. to ask d. to be asked

Supply the correct form of the word in brackets. The..1…………………………………….(act) to the Disney film Snow White and seven Dwarfs when it was first shown in 1937 was..2…………………………………………….(ordinary). It was received with great..3……………………………………..(excite) and it immediately became enormously popular..4………………………………………(through) the world. Good advertising was not only the reason for this..5…………………………………………(world) popularity, the film and its characters captured the..6……………………………………….(imagine) of people all over the world like no film before it. In Britain, there were..7………………………………………...(day) newspaper articles about the film and how it was made. Snow White toys and books were on..8……………………………………….(sell) everywhere. Some people thought that it might be..9……………………………(upset) for children but most people saw it as..10………………………….(harm) entertainment. Since 1937,it has been re-issued few years ,giving..11………………………………..(enjoy) to many generations of children.

Phân tích đa thức thành nhân tử: a. 8x^3-y^3-6xy.(2x-y) b. (3x+2)^2-2(x-1)(3x+2)+(x-1)^2

Giups mình câu này với nhanh nhá mình cần gấp đúng mình vote 5s cho nhá!!!

Tìm gtnn: A=2x^2+x+1 B=3x^2+5x+2