Chứng minh với mọi số nguyên n thì phân số $P=\dfrac{6+8n+15n^2}{13+21n+30n^2}$ là phân số tối giản

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V. Translate into English. 37. Buổi tiệc sẽ kéo dài từ 7 giờ sáng đến 9 giờ sáng. a. The meeting lasts from 7.00 a.m to 9.00 a.m b. The meeting will lasts from 7.00 a.m to 9.00 a.m c. The meeting will last up 7.00 a.m to 9.00 a.m d. The meeting will last from 7.00 a.m to 9.00 a.m VI. Recorder the words to make the correct answer. 39. family/ to/ will/ this/ my/ weekend/ go/ Nha Trang ............................................................................................. 42. the/ we'll/ morning/ go/ swimming/ in ......................................................................... 43. very/ sand casties/ on/ buiding/ the/ much/ brother/ likes/ my/ beach ................................................................................................................................. 44. countryside /we/ picnic/ will/ for/ a/ in/ go/ the/ ........................................................................................... 46. be/ Where/ will/ Saturday/ you/ on/ ? ......................................................................... 48. week/ the/ they/ seaside/ will/ be/ at/ next ..................................................................................... 49. and/ I/ think/ school/ Mai/ I/ be/ at/ will ........................................................................... 50. know/ he/ doesn't/. /he/ boat/ may/ the/ take/ a/ trip/ island/ around ............................................................................................................................... Acj nào giỏi T.A thì làm hết hộ e, lm hết mới đánh giá 5*, ctrlhn,và cảm ơn nhé