Monday 30 January 2017

polynomials - Show that $x^5-x^2+1$ is irreducible in $mathbb{Q}[x]$.

Show that $x^5-x^2+1$ is irreducible in $\mathbb{Q}[x]$.



I tried use the Eisenstein Criterion (with a change variable) but I have not succeeded.




Thanks for your help.

No comments:

Post a Comment

real analysis - How to find $lim_{hrightarrow 0}frac{sin(ha)}{h}$

How to find $\lim_{h\rightarrow 0}\frac{\sin(ha)}{h}$ without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...