- #1
Palindrom
- 263
- 0
Hi!
I need to show that x^4+1 is reducible modulo p for all prime p.
I was thinking to show that it has to have a root in some odd extension of Zp, which would force that root to be in Zp. Am I on the right track?
I need to show that x^4+1 is reducible modulo p for all prime p.
I was thinking to show that it has to have a root in some odd extension of Zp, which would force that root to be in Zp. Am I on the right track?