Tính a) 8($\frac{x}{2}$+y)$x^{3}$ b) 6(x+2y)$x^{2}$

Máy lag quá: giải câu 2+6 sẽ có CTLHN

HELPPPP MEEEE 5 SAO KHI LÀM NHANH NHẤT

Tìm GTLN : a) ` (12) / (3 + |5x + 1|+|2y-1|)` b) ` (5) / (4x ² + 4x + 2y + y ² + 3)`

Giải giúp em với mọi người ơiiii

Exercise 3: Rewrite the sentences, beginning with the words in parentheses: 1. She has plenty of money, but she is very mean. (although) ______________________________________________________________ 2. They have a car, but they rarely use it. (though) ______________________________________________________________ 3. He was innocent, but he was sent to prison. (although) ______________________________________________________________ 4. He has a number of relatives living nearby, but he never visits them (even though) ______________________________________________________________ 5. She never takes any kind of exercise, but she is quite fit and healthy. (even though) ______________________________________________________________ 6. The keyboard wasn’t working well. She tried to finish the letter (although) ______________________________________________________________ 7. The forecast said it would rain. It turned out to be a beautiful day. (although) ______________________________________________________________ 8. I’m no better. I’ve taken the bill. (even though) ______________________________________________________________ 9. The traffic was bad. I arrived at the airport on time. (though) ______________________________________________________________ 10. I didn’t get the job. I had all necessary qualifications. (though) ______________________________________________________________ 11. We enjoyed the vacation. It rained a lot. (although) ______________________________________________________________ 12. She felt sick. She went to work. (though) ______________________________________________________________ 13. I was really tired. I couldn’t sleep. (even though) ______________________________________________________________ 14. He is very rich. He isn’t happy. (although) ______________________________________________________________ 15. She couldn’t answer the question. She is very intelligent. (though) ______________________________________________________________

phần tích đa thức thành nhân tử A=4x^2-8x+3 bằng hai cahcs

Bài 16: Trên một nửa mặt phẳng bờ có chứa tia Ox, vẽ 2 tia Oy và Oz sao cho góc x0y = 30°, góc x0z = 110°. a. Trong 3 tia Ox, Oy, Oz, tia nào nằm giữa hai tia còn lại? Vì sao? b. Tính yoz ? c. Vẽ Ot là tia phân giác của góc yOz. Tính góc zOt và góc tOx? Bài 17: Cho x0y và y0z là hai góc kể bù sao cho x0y = 120°. a) Tính số do góc y0z? b) Vẽ tia Ot là phân giác của xOy. Tính số đo góc tOx và toy? c) Chứng tó rằng tia là tia phân giác của góc t0z ?

T={ 0, 1, 2, 3, 4, 5, 6} Có bao nhiêu số tự nhiên có 4 chữ số lập từ T mà mỗi số lớn hơn 5000? Giải giúp mình câu này mình cảm ơn ạ.

giúp em!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!