New posts in irreducible-polynomials

Eisenstein Criterion

Discuss $\mathbb R[X]/(aX^2 +bX + c)$ in terms of $\Delta = b^2-4ac$

Polynomial irreducible - maximal ideal

$x^p -x-c$ is irreducible over a field of characteristic $p$ if it has no root in the field

Show that $x^{n-1}+\cdots +x+1$ is irreducible over $\mathbb Z$ if and only if $n$ is a prime.

Homogenous polynomials in $K[X,Y]$ split into linear factors [duplicate]

Check the proof of:$x^2+1$ is irreducible over $\Bbb Q$

When is $X_1^{a_1} \cdots X_n^{a_n}-1$ irreducible?

Minimal polynomial of product, sum, etc., of two algebraic numbers

Reducibility of $x^3+nx+1$ over $ \Bbb Z$

How prove $P(x)=\sum_{k=0}^{n}(2k+1)x^k$ is irreducible over $\mathbb{Q}$

Construction of addition and multiplication table for GF(4)

Factor $x^5+x^2+1$ into irreducible polynomials in $Z[x]$

Show that $\mathbb Q(\sqrt p) \not\simeq\mathbb Q(\sqrt q)$ [duplicate]

Product of all monic irreducibles with degree dividing $n$ in $\mathbb{F}_{q}$?

Every irreducible polynomial f over perfect field F is separable

Polynomial with a root modulo every prime but not in $\mathbb{Q}$. [duplicate]

How to check that a cubic polynomial is irreducible?

Why are $i$ and $-i$ "more indistinguishable" than $\sqrt{2}$ and $-\sqrt{2}$?

Irreducibility of $p^{n-1}X^n+pX+1$ over $\mathbb{Q}$ [duplicate]