MathYouLike MathYouLike
  • Toggle menubar
  • Toggle fullscreen
  • Toggle Search
  •    Sign up
  • QUESTIONS
  • TAGS
  • USERS
  • BADGES
  • UNANSWERD
  • ASK A QUESTION
  • BLOG
...

Nguyễn Hưng Phát

16/11/2017 at 13:33
Answers
1
Follow

Find the number of roots of the following equation

(x-2017)(x2-20182)(x3-20193)(x4-20204)=0




    List of answers
  • ...
    Phan Thanh Tinh Coordinator 18/11/2017 at 00:27

    We have :

    \(\left[{}\begin{matrix}x-2017=0\\x^2-2018^2=0\\x^3-2019^3=0\\x^4-2020^4=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=2017\\x=\pm2018\\x=2019\\x=\pm2020\end{matrix}\right.\)

    So, the equation has 6 roots above

    Nguyễn Hưng Phát selected this answer.

Post your answer

Please help Nguyễn Hưng Phát to solve this problem!



Weekly ranking


© HCEM 10.1.29.225
Crafted with by HCEM