Câu trả lời:
(a-b)-(a-b-c)-(2b+c-a)
=a-b-a+b+c-2b-c+a
=a-2b
(a-b)-(a-b-c)-(2b+c-a)
=a-b-a+b+c-2b-c+a
=a-2b
cha 33 tuổi
200:8 nha
tk nha
thanks
VI. Reorder the words to make the meaningful sentences ( 2pts)
21. hard – working/ is/ but/ her/ is/ lazy/ ./ She/ very/
brother____________________________________________________________
22does/always/My mother/the grocery shopping.
____________________________________________________________
23. We/watch/often/TV/after dinner.
____________________________________________________________
24. students/their/homework/usually/The/do.
____________________________________________________________
giúp mk nhé
mình thích môn Tiếng Anh nhất.