user-avatar
tp7450861
2 năm trước
mọi người giúp mình với mình cần gấp cho phương trình bậc 2: (m-1)x ² - 2mx + 1 = 0. a)tìm m, biết phương trình có nghiệm x=0. b)xác định giá trị của m để phương trình có tích 2 nghiệm =5, từ đó hãy tính tổng 2 nghiệm của phương trình
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

- ................................................................................................... II. Chuyển các câu sau sang câu bị động ở thì quá khứ đơn ( Past simple). 1. Mrs Allen wrote that novel in 1998. - That novel was written by Mrs Allen in 1998. 2. Nam borrowed the reference book yesterday. - .................................................................................................. 3. The boy ate two loaves of bread last Sunday. - .................................................................................................. 4. He left the letter on the desk some minutes ago. - .................................................................................................. 5- My mother bought a new bike last month. - .................................................................................................. 6- Jack London wrote the novel "Martin Idon".- .................................................................................................. 7- The Chinese invented paper in the century A.D. - .................................................................................................. 7- Vietnamese planted trees in their neighborhood a year ago. - .................................................................................................... 8- The children played games yesterday. - .................................................................................................... 9- My sister did the housework yesterday. - .................................................................................................... 10- The publisher published his book in 1996. - .................................................................................................... III- Hoàn thành các câu sau dùng cấu trúc câu "S + be + adjective + to V " Ex: It/ lovely/ see/ you/ again. -> It is lovely to see you again. 1- I/ too excited/ do/ anything. .................................................................................................... 2- Lan / glad / see / her old friend again. .................................................................................................... 3- The students / worried / hear about the new information. .................................................................................................... 4- She / strong enough / carry / all those heavy bags. .................................................................................................... 5-Tam / intelligent enough / finish the test in an hour. .................................................................................................... 6- He / too sick / go / school / yesterday. .................................................................................................... 7- Ba /delighted / receive / his close friend's letter. .................................................................................................... 8-The children / happy / get toys from Santa Claus at Christmas. .................................................................................................... 9- I/ delighted/ receive your message. - .................................................................................................... 10- We/ happy/ receive/ a lot of presents from our grandparents .................................................................................................... 11- He/ anxious/ wait for the test results.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team