Giúp mình xong trước 2h15 với ạ

x^2 - x + 1/4 Cảm ơn đã giúp! Giai thích nữa nhé!

Mọi người giúp với ak? Em sẽ cho mọi người ctlhn ak

Giúp mình vs ạh mình phải nộp gấp..

1) $\frac{9x-48}{18y-54}$ = $\frac{2x-14}{4y-12}$ 2) $\frac{x.y-x^{2}}{y^{2} -x.y}$ = $\frac{x}{y}$ CÁC BẠN NHÂN TÀI GIÚP MÌNH NHÉ BẠN NÀO LÀM XONG ĐẦU TIÊN MÌNH SẼ CHO CTLHN!!!!

cho 4 số 4 ; 6; 8 và số x chưa biết . Tìm STN x để số x cùng với 3 số trên lập thành các cặp bằng nhau . Có mấy giá trị của x thỏa mãn , viết các cặp phân số bằng nhau .

Một gen có A + G = 1500 và A - G = 300 Nu a) tính số Nu từng loại

soạn văn bản gồm những phần nào ( sọan văn )

1. Phone this number if you need any....... (assist) 2. The company employs several........ (emigration) 3. Necessity is the mother of ........(inventor ) 4. In the... he explains why he wrote the book 5. Beth...........a meeting with the marketing director yesterday. (arrange) 6. An.........with the employers was finally worked out.(agree) 7.The automatic ........ a five speed, costs $ 975. (transmit) 8. He.....to Australia as a young man. (emigration) 9 Most Indian restaurants offer free... (deliver) 10. Each child had to give a short....... to the rest of the class. (speak) 11.He and his....... hung around shopping malls and city streets. (assist) 12. Why don't you...... her for a drink at the club one evening? (invitation) 13. Brenda wanted to....... her sympathy in a practical way. (demonstration) 14. Our city is the biggest....... center in the country. (commerce) 15.He...... completed his experiment. (success)

2. How interesting the action movie is -What.... 3. I plan to come over to pick you up. -I am..... 4. My silk dress is red and beautiful - I have..... 5. Do you want to see a movie tonight? -Would ....... 6. Minh does his homework in an hour every evening -Minh spends...... 7. The weather was fine. We could go camping. - The weather...... 8. Mai intends to help her mother with the housework -Mai is..... 9.The Sao Mai movie theater is near our house. -The Sao Maimovie theater isn't...... 10.The new novel is interesting -It’s.......