Determine whether the following sentences are correct or incorrect and error correction 1. Scientists have made significant achievements in medicine. 2. The storm uproots the trees, so we cannot travel this road now. 3. Our family has lived in this house when I was five years old. 4. People use vaccination for a long time to prevent certain diseases. 5. I have seen Julia three times this week. What a coincidence! 6. I feel so relieved now. My father has found the key I lost this morning. 7. I have had this laptop when I was a first year student.

Tìm m, biết: x^4 - x^3 + 6x^2 – x + m = (x^2–x+5) (x^2+1).

tính nghiệm của G : -1+3x mũ 2 và K : -1 + 3x mũ 2 +4

chứng minh rằng tổng 2p+1 số tự nhiên liên tiếp chia hết cho 2p+1 ................. Hứa vote 5*+ ctlhn

Determine whether the following sentences are correct or incorrect and error correction 1. This button is used to opening the suitcase. 2. You can use Facebook to connect with old friends or making new friends. 3. You should take some aspirins to get rid of your headache. 4. Study this data to gain some insights into the problem before writing. 5. Making better voice quality, use this microphone instead of that one. 6. People collect those samples for study the elements of the surface of the Moon.

Giúp mik 2 bài này đc ko ạ?Mik cảm ơn

bài văn nghị luận bàn về câu nói sau: " giữa thành công và thất bại có con sông gian khổ, trên con sông đó có cây cầu tên là sự cố gắng"

Rút gọn: (2x - 1) (3x + 2) (3 - x).

mình hỏi là does/do don't/doesn't và thêm đuôi es khi nào ạ

Bài này. Khó quá các bạn giải hộ mk với nha