viết theo học sinh nhé cái này mk send for teacher K CẦN ONE PHOTO đâu nhé

Dạ xin mng giúp em câu 13,14 ạ Em xin cảm ơn nhiều

tìm tất cả các số nguyên dương (x,y) sao cho x^2-2/xy+2 có giá trị là số nguyên. Giúp mik ik, hứa vote 5 sao cho tất cả.

VI. Rearrange the words / phrases given to make sentences. 1. over/ Life / changed / past / in / countryside/ the / has / ten / years / a lot / the . …………………………………………………………………………………………………. 2. among/ beautiful / Sapa’s / world / terraced fields / in / most / are / the / the . …………………………………………………………………………………………………… 3.teenagers / on / Nowadays / more / past / rely / the / than / technology/ in. …………………………………………………………………………………………………

30) Poison is harmful (to/with/for/about) humans. 31) Cheques are useful (with/to/for/on) travellers. 32) Are you successful (on/in/at/to) your experiment? 33) She got back safe (for/from/with/to) her adventure. 34) It was very lucky (to/for/of/with) me that my bag was found. 35) He seems friendly (on/to/for/about) everyone in the village. 36) She was sad (about/for/with/to) my refusal. 37) Quang Linh is popular (with/for/to/in) folk songs. 38) The student is quick (with/at/on/to) understanding what the teacher explains. 39) The story is very pleasant (to/with/for/in) us. 40) He is very kind (to/of/with/for) me.

Vẽ Kisaki Tetta (Tokyo Revengers) Đk:Đẹp nha,ko màu, ko phải chibi Mình sẽ cho ctlhn,cảm ơn, vote 5* nếu đủ đk trên

a, 5,5 + 4,5 - 5,5 +21,25 +7,75 - |-0.5| b, (7x + 3)^4 = 625 c,Số x12 (với x ≠ 0) Không bằng với những số nào ? d, 3 5     Giúp mình với ạ , mình cảm ơn mng ><

Vẽ mầm cute!!!!!!!!!!!!!!!!!!!!!

3x.(5x mũ 2 - 2)- 5x mũ 2.(3x+7)-5phần 2.(2-14x mũ 2) với giá trị tuyệt đối của x=1 phần 2 dấu . là nhân nhé

I have never seen such a beautiful flower. -> It's the most...