Giải hộ em và nêu phương pháp đc áp dụng giúp em với ạ

Tìm số nguyên tố P ; Q ; R sao cho : P^2 + Q^2 + R^2 = 6P + 4Q + 2R

Hãy nêu nội dung chínhbài chuyện con lừa

Tứ giác có phải là hình thang không

Cho tam giác abc vuông tại c, đường cao CH. Biết AC=9cm, BC=12cm A. Tính AB,CH,HA, góc A, góc B B. Kẻ HM vuông AC (M € AC),HN vuông BC (N € BC). Chứng minh: CM.CA= CN.CB=HA.HB

My French friend finds driving on the left difficult ( USED TO ) They think the owner of the house is abroad ( THOUGHT ) We didn't go on holiday because we did not have enough money ( WOULD ) The children couldn't go swimming because the sea was rough ( TOO )

1 you can’t visit the USA unless you have a visa => if you 2.”can i borrow your typewriter, janet”? Asked peter => peter asked if 3. She started working as a secretary five years ago => she has 4. She knows a lot more about it than i do => i don’t know 5. My French friend finds driving on the left difficult ( used to) 6. They think the owner of the house is abroad (thought) 7.the children couldn’t go swimming because the sea was rough (too)

Giúp mình c55 đáp án có vấn đề k ạ

You can't visit the USA unless you have a visa => If you.... "Can I borrow your typewriter, Janet"? asked Peter => Peter asked if... She started working as a secretary five years ago => She has... She knows a lot more about it than I do => I don't know....

tiếng anh 6 unit 2 skills 1 bài 5