"Can you speak English?" Said An

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(-3x^2y^3+4x^3y^4-y^4y^5):(-x^2y^3)

Hộ mình câu 21 với ạ.mình sẽ vote 5* cho ctl hay nhất

Giúp mk vs mn ơi mk cần gấp ạ:((((

Giải phương trình nghiệm nguyên: `2^x+2^y+2^z= 2^n (x ≤ y ≤z , n in NN; x,y,z in ZZ)`

giúp e voi moi ngươi ơiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Vẽ mikey trong tokyo revengers ik:>>>

Có các chất sau, những cặp chất nào có phản ứng với nhau, viết PTHH ghi rõ điều kiện nếu có: NaOH, H 2 SO 4 , BaCl 2 , MgCO 3 , CuSO 4 , SO 2 , Al 2 O 3 , Fe 2 O 3 , Cu, AgNO 3 .

VII. Complete each of the following sentences with the words or phrases given. 36. robots / able / guard / houses/ when / we / be / away //.___________________________________________________________________________ 37. If/ we/ keep/ hunt/ animals/ they/ disappear/ soon.___________________________________________________________________________ 38. Students/ class 6A/ plant/ some trees/ school yard/ tomorrow morning.___________________________________________________________________________ VIII. Rearrange the following words and punctuation marksto complete the sentences. 39. years/ new/ building/ is/ but/ looks/ 100/ more than/ old/ the/ it.___________________________________________________________________________ 40. sailing/ my house/ my classmate Nam/ on the river/ last summer/ went/ with/ I/ near.___________________________________________________________________________