chứng minh các đẳng thức sau với a,b,c thuộc z b,a(b-c)-a(b+d)=-a(c+d)

x:(-2)=5 nhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Giúp mình giải các câu này với ạ!

II. Rearrange the given words to make complete sentences 1. Fun-lovers / dancing / experience / such / activities / festival, / Highland Games, / the / with / the / Scottish / as / the / drumming / can / unique / and / world-famous /. (18 words and phrases) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 2. In / poor / and / countries, / there / water / other / are / many / diseases / outbreaks / drinking / of / cholera / frequent / of / people / untreated / because /. (19 words) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 3. In / of / sterile / with / burns, / you / cloth / burned area / should / ease / the / the / with / ice / or / a / cold / case / water / and cover / pain /. (21 words and phrases) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 4. Farmers / our / grow / and / dung / for / their / animals / village / the / fields / use / for / in / fertilizing / their / food /. (17 words and phrases) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 5. John / wants / in / the / of / so / is / he / left / to / visit / 1911 / the / history / in / interested / Vietnam, / where / President Ho Chi Minh / place / Vietnam, /. (21 words and phrases) à …………………………………………………………………………………………………………………………………. 6 …………………………………………………………………………………………………………………………………. 6. herbicides/ Farms/ air/ to/ using/ cause/ and/ weeds/ pesticides/ to/ kill/ also/ insects/ kill/ can/ pollution/. (16 words) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 7. world/ Edinburgh,/ in/ the / of/ the/ brigade/ own/ capital/ in/ was/ to/ the/ its/ first/ Scotland,/ have/ fire/ city/ 1824/. (20 words) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 8. All/ their/ Alaskans/ beautiful/ take/ “Land of the Midnight Sun”/ and/ pride/ unique/ in/ state,/ called/. (12 words & phrases) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 9. Nowadays/ sandals/ many/ and/ from/ people/ wear/ old/ made/ car/ shoes/ tires/. (12 words) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………. 10. The/ current/ alarming/ rate/ process/ dioxide/ from/ the/ atmosphere/ has/ been/ of/ forests/ absorbing/ carbon/ disrupted/ by/ the/ of/ deforestation/. (20 words) à …………………………………………………………………………………………………………………………………. …………………………………………………………………………………………………………………………………

Minh go to bed at a quarter _ _ ten

Giúp mình giải 2 bài này với mình xin cảm ơn

12000*(0.3-h2)+8000*h2=9000*0.3 Tìmh2

cho 10,4g 2 kim loai x y o 2 chu ki lien tiep thuoc nhom 2a tac dung 490,2g hcl duoc 6,72 lit khi dktc va dd A xac dinh X Y tim thanh phan phan tram

Tới đây em sẽ chuẩn bị bước vào kỳ thi vào lớp 10 -thpt . Trong năm học mới, em sẽ chuẩn bị hành trang cho mình như thế nào để bước vào kỳ thi đó.

Mng giải hộ mình bài 3 câu b,c,d nhé cảm ơn mng