Forgot password?
 Register account
View 125|Reply 0

[函数] 含参四次多项式根的分布

[Copy link]

460

Threads

952

Posts

9848

Credits

Credits
9848

Show all posts

青青子衿 Posted 2024-10-17 10:04 |Read mode
多项式$F(x)=(x^2 + px + q)^2 + 4rx$的实系数满足
\[q^6 - r (p q + r) ((p q + r)^2 + q^3)=0\]
含参四次多项式$F(x)$能不能有四个(非实)复数根?

Mobile version|Discuz Math Forum

2025-6-6 12:15 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit