Is $\frac{x^2 + 2x}{x}$ a polynomial?
117816
Is $\frac{x^2+x}{x+1}$ a polynomial?
68528
$f(x)=x^n+5x^{n-1}+3$ can't be expressed as the product of two polynomials
103340
Show that this entire function is polynomial.
87331
Real polynomial in two variables
49121
Factorizing a polynomial $f$ in $A[x]$ (with $A$ commutative), where $f$ has a zero in its field of fractions
113045
How do I find the inverse of $f(x) = \frac{x}{x^2 + 1}$
43792
Find polynomials such that $(x-16)p(2x)=16(x-1)p(x)$
121845
Quotient of polynomials, PID but not Euclidean domain?
7199
Suppose that $P(x)$ is a polynomial of degree $n$ such that $P(k)=\dfrac{k}{k+1}$ for $k=0,1,\ldots,n$. Find the value of $P(n+1)$
91388
Prove that $f$ is a polynomial if one of the coefficients in its Taylor expansion is 0
145191
Content of a polynomial
97652
Can every real polynomial be factored up to quadratic factors?
87055
How to prove $\frac{x}{1+x^2}0$?
55509
Factor a polynomial over the reals
114861
equation $\frac{\frac{1}{x^2}-\frac{1}{y^2}}{\frac{1}{x^2}+\frac{1}{y^2}}$
64878
Is this polynomial irreducible in $\mathbb{Q}$?
134088
How to factorize $x^4+2x^2+4$ to a product of polynomials with real coefficients?