is a real-coefficients fourth degree polynomial always factorizable in real-coefficients polynomials?
37593
Can all real polynomials be factored into quadratic and linear factors?
126402
How to factor a fourth degree polynomial
44878
Factor $x^5+x^2+1$ into irreducible polynomials in $Z[x]$
114529
Factoring/Reducing a polynomial $x^4 -2x^3 + 2x^2 + x + 4$
154393
Roots of polynomial with real coefficients appear in conjugate pairs.
112334
Real roots of a polynomial of real co-efficients , with the co-efficients of $x^2 , x$ and the constant term all $1$
53725
Factor $(x+y)^4+x^4+y^4$
87331
Real polynomial in two variables
52528
Showing that minimal polynomial has the same irreducible factors as characteristic polynomial
81669
The logic of the AC Method of factoring quadratic polynomials
148671
Trying to factor $x^4-3$ over $\Bbb{F}_p$ with $p\equiv 3\mod{4}$
100899
Coefficients of the characteristic polynomial
65619
Does $f^{(n)} = 0$ imply that complex $f$ is a polynomial?
8255
Real polynomials from repunits to repunits ( Putnam 2007 A4)
75120
Polynomial arithmetic uses coefficient ring arithmetic
37273
Is factoring polynomials as hard as factoring integers?
129946
Synthetic division of polynomials by factor of the form $(ax+b)$