cho biểu thức M=x-5/x-4 và N=x+5/2x-x-6/5-x-2x^2-2x-50/2x^2-10x a.tính giá trị M khi x^2-3x=0 b.rút gọn M

29. I have a…………………….to talk a lot whenever I am nervous. (tend) 30. If you need any help, you can ask Tom. He’s very …………………… (help) 31. For many employees, job …………………… is more important than making money. (satisfy) 32. Mel Gibson is a ……………………actor. (talent) 33. This singer is not very pretty but she sings very …………………… (beauty) 34. Fluoride……………………your teeth, thus preventing tooth decay. (strong)

Giúp mình với phần 2 với phần 3

Giúp mình 7 câu Trắc nghiệm này với mình hứa sẽ đánh giá 5 sao

Tìm giá trị lớn nhất của biểu thức : -x^2-3x +1

Rút gọn các biểu thức sau: a)(x+1)^2+(x-2)(x+2)-3(x+1) b)(3x+1)^2+2(3x+1)(2x-1)+(2x-1)^2 Tìm x: a)(x+3)^3-x(3x+1)^2+(2x+1)(4x^2-2x+1)=28 b)(2x-1)^2+(x+3)^2-5(x+7)(x-7)=15 Giúp ạ, cảm mơn mn nhiều lém ^ ω ^

Cali: "Lê Khả Châu" Yc: có tâm, ko phạm luật hoidap Nl: tên em đấy

Làm thế nào vậy ạ em không biết làm bài này

Có đoạn thẳng ab và CD ab=16cd=89.Tính diện tích hình tam giác abcd

Giúp mình với ạ cảm ơn nhiều TAG QUESTIONS 31 You have lived in Hollywood for many years,... ...... ? 32 You’re working on another screenplay now,... .......... ? 33 Speaking of kids, you have some of your own, ............. ? 34.That depends on what you mean by a long time,... ........ ? 35 Nothing wrong,.....? 36 We went to Stan’s holiday panty last year,.........? 37 Tom and Fred hadn’t been to Florida before then,......? 38 There are a lot of people here,... ...? 39.They had to go home,... ..... ? 40 The little children were let go away,... .... ? 41 Mary really goes out on Sundays,... ........ ? 42 There is something wrong with the new car,... ..... ? 43 That is true story,... ..... ? 44 The quality of these recordings is not very good,.....? 45 This book isn’t very interesting,.....? 46 Mr. Brown needs to leave right now,..?47 Listen to what I am staying,......? 48 Tom had great difficulty finding a jobs,... .... ? 49 The police come to the side of the accident,... ...... ? 50 Ba complained about the noise,... ........?