1) a)(x ³-2x ²+3xy ²):(-2x) b)(6x ³-7x ²-x+2):(2x+1) c)(x ²-3x+xy-3y):(x+y) 2) a)x ²-y ²-4x+4 b)x ²-x-2020.2021 3) 2x ²+x+a+1 chia hết x-3 4) 2n ²-n+2 chia hết cho 2n+1 Các bạn làm giúp bài mình nhé.Mình cảm ơn nhiều nhé

câu 1:kể 4 hành vi trái vs lẽ phải câu 2:học sinh cần làm gì để rèn luyện tính tự lập? liên hệ với em

Mn lm giúp mik vs ạ Ng nào lm hay hơn sẽ đc ctlhn

Một HCN có chi vi 550m.Tính cd và CR của hình bt rằng nếu viết thêm chữ số 1 vào trước số đo thì đc số đo chiều dài.

Viết bài văn cảm nghĩ về mái trường

5: Tim GTLN của biểu thức: M = -x^2-y^2 + 4x + 4y + 2.

Bài giải PT khi nào cần chia ra 2 TH, khi nào cần chia ra 1 TH

Cầu 34: I'm tired of GRADE 10 your excuses. A. to hear B. hear C. heard are those who do not have a job. Câu 35: The D. hearing A. injured B. rich Câu 36: The room C. unemployed D. young for weeks. A. cleaned B. hasn't been cleaned C. haven't cleaned D. isn't cleaning Câu 37: My sister is looking forward your country. A. to visit B. visiting C. to visiting D. visit Câu 38: I would rather at home than go out. A. to stay B. staying C. to staying D. stay Câu 39: is it to the post office? - About two hundred meters A. How far B. How long C. How often D. How much Câu 40: 1 to school last Friday. A. wasn't go B. not went C. don't go D. didn't go Câu 41: He to the library every Sunday. B. doesn't go A. don't go C. didn't go D. hasn't gone Câu 42: He a teacher since he from the university. A. was/ had graduated B. had been/ graduated C. was/ has graduated D. has been/ graduated Câu 43: Before he went to bed, he his homework. B. had done C. have done D. did A. has done Câu 44: Are you contented B. for your present job, Mrs. Tuyet? C. with D. of A. to traffic so she was late for the meeting. Câu 45: Peter was stuck in the B. wide C. heavy D. light A. narrow Câu 46: My parents always worry my safety at school. C. about D. to B. in A. at in becoming an Mathematics teacher. C. interested Câu 47: Nancy is D. interestingly A. interest B. interesting Câu 48: A is someone who teaches one student or a very small class. D. scientist C. adviser B. professor A. tutor to bed last night. B. had finished / had gone D. had finished /went our homework before we Câu 49: We A. finished/ went C. finished / had gone Câu 50: We are contented A. of what we have achieved. C. on D. with B. in

Trang trí chữ ''Đố Vui'' ko vẽ app helpppppppppppppppppppppppppppppppppp

Giúp mình từ cậu 16 đến 20 phần II thôi ạ. Mình xin cảm ơn.