`f)`
`x^3- 6x^2 + 11x-6`
` = (x^3 - 5x^2 + 6x) - (x^2 - 5x + 6)`
` = x (x^2 - 5x + 6) - (x^2 - 5x + 6)`
`= (x-1)(x^2 - 5x + 6)`
`= (x-1)(x^2 - 3x - 2x + 6)`
` = (x-1) [ x(x-3) - 2(x-3)]`
` = (x-1)(x-2)(x-3)`
`g)`
`3x^3 - 7x^2 + 17x -5`
`= (3x^3 - 6x^2 + 15x) - (x^2 - 2x + 5)`
` = 3x (x^2 - 2x+5) - (x^2 - 2x + 5)`
`= (3x-1)(x^2 - 2x +5)`
Đáp án+Giải thích các bước giải:
`x^3-6x^2+11x-6`
`=x^3-3x^2-3x^2+9x+2x-6`
`=x^2(x-3)-3x(x-3)+2(x-3)`
`=(x-3)(x^2-3x+2)`
`=(x-3)(x^2-x-2x+2)`
`=(x-3)[x(x-1)-2(x-1)]`
`=(x-3)(x-1)(x-2)`
`3x^3-7x^2+17x-5`
`=3x^3-x^2-6x^2+2x+15x-5`
`=x^2(3x-1)-2x(3x-1)+5(3x-1)`
`=(3x-1)(x^2-2x+5)`
REPORTED SPEEECH 31. “Do you have a car?” I asked David 32. “Did you play for your school team?” bill said to them 33. “What happened to Mr. Brown?” he said to us 34. “Who is going to live in the big house?” he said to her 35. “What will happen to his racehorses?” she said to us 36. “Who is playing next week?” he asked me 37. “Which team has won?” asked Ann. 38. “Who went to the party last night?” he said to me 39. “Where do you work?” he said to me 40. “Why does the price go up so often?” She wondered.
Mọi người giúp em câu này với ạ
Calli : Cố lên các bạn NL: Cày thì cày nhưng đam mê là không bao giờ từ bỏ :3
giúp mik với mn ưi , mik đg kẹt :<<<
Viết câu bị động nha hơi khó làm nhanh mình vote 5×××× nha
C Complete the second sentence so that it has a similar meaning to the first sentence. Use the words in bold. 1 Have you got any plans for the weekend? DOING What ________________ this weekend? 2 He must get access to an internet connection in order to see your email. ONCE He will be able to see your email, ________________ an internet connection. 3 Stacy started taking computer lessons from September and she will take her exams in May. BEEN By the time Stacy takes her exams, she ________________ computer lessons for nine months. 4 I’ll get home and I’ll text you. SOON I’ll text you ________________ home. 5 We have arranged to give an online seminar on 9 December. ARE We ________________ an online seminar on 9 December. Not For Sale 6 I had no intention of buying anything online. WAS I ________________ to buy anything online. 7 Tina told me she was having problems with their after sales service, so I didn’t shop from them. GOING I ________________ from them, but Tina told me she was having problems with their after sales service. 8 I’ll still be replying to emails when you get here. NOT By the time you get here, I ________________ replying to emails.
Các bạn làm giúp mình với ai làm xong và đúng mình cho hay nhất ngay
Câu 1: Thông điệp mà em tâm đắc nhất qua đoạn trích trên là gì? Lí giải sự lựa chọn thông diệp đó. Câu 2: Từ đoạn trích trên, em hãy viết một đoạn (khoảng 200 chữ) trình bày suy nghĩcủa em về văn hóa đọc của các bạn trẻ ngày nay.
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