Giúp mình với mình cần gấp ạ

Dùng hằng đẳng thức để rút gọn các biểu thức sau:

chia thì htđ và httd nhé tập trung vào câu 8 trước nhé

Tóm tắt sơ đồ mạch điện sau, ampe kế lí tưởng

Cho hình thang cân ABCD (AB//CD). Biết BD là tia phân giác của góc D, DB vuông góc với BC, biết AB = 4 cm . Tính chu vi hình thang?

tại sao khi ngồi trên xe ô tô tài xế và hành khác phải thắt dây an toàn dùng kiến thức v.lý đã học ( có lợi, có hại )

Nữ chiến sĩ nào 13 tuổi đã từng gặp Bác Hồ 3 lần và đã làm Bác thán phục? Lưu ý: Người chiến sĩ ấy sinh năm 1954,

Put the adjectives in brackets into the comparative or superlative from adding any necessary words. A: what do you think of this dress, Julia? B: it’s lovely. It’s (1) … (nice) of all you’ve tried on yet. A: Yes, but I prefer short dresses. B: well, it’s true that this dress is (2) … (long) the blue one, but it’s also (3) … (elegant) A: yes, but it’s (4) … (expensive) dress we’ve seen so far. B: I know. The blue one is much (5) … (cheap), but it doesn’t look at the black one A: Oh! I can’t decide. What time is it? B: It’s only 6 o’clock. We’ve got plenty of time. A: really! I thought it was (6) … (late) that. B: why don’t we go to another shop? A: no, I’ve decided. I like the black dress(7) … (good). It’s (8) … (expensive), but it doesn’t matter B: Ok, let’s go and pay for it

vẽ đậu mầm/chibi/anime chọn mợt trong 3 cái

1. She said that she _________ him the previous day a. had visited b. has visited c. will visit d. would visit 2. He said that he _________ me there at 4.30 this afternoon. a. would meet b. met c. will meet d. meets 3. The salesman was telling me that he _________ ten cars last week. a. sold b. had sold c. would sell d. has sold 4. Did Bob say that he _________ from Princeton in 1951? a. would graduate b. graduates c. has graduated d. had graduated 5. Some _________ the tickets are free a. said me b. said me that c. told me d. told to me 6. “I’ll do it tomorrow”. He said he’d do it _________ a. the following day b. tomorrow c. today d. the previous day 7. The librarian asked us _________ a. don’t make b. not make c. not making d. not to make 8. What did the man say _________ ? a. at you b. for you c. to you d. you 9. I wonder _________ the tickets are on sale yet a. what b. when c. where d. whether 10. When I rang Tessa sometime, she said she was busy _________ day a. that b. the c. then d. this 11. When he was at Oliver’s flat yesterday, Martin asked if he _________ use the phone a. can b. could c. may d. must 12. She _________ her holiday in Finland a. said me about b. told about c. said about d. told me giúp mình ạ