Polynomial equation $f(x)f(2x^2)=f(2x^3+x)$
4178
Solve $f(x)f(2x^2) = f(2x^3+x)$
109102
Determine all real polynomials with $P(0)=0$ and $P(x^2+1)=(P(x))^2+1$
42699
Solve for $f(x)$ if $f(f(x))=6x-f(x)$
32856
Functional equations $f(x+y)= f(x) + f(y)$ and $f(xy)= f(x)f(y)$
107133
Let f(x) be a polynomial satisfying $\lim_{x \to\infty} \frac{x^4f(x)}{x^8+1}=3,$ $f(2)=5 $ and $f(3)=10$, $f(-1)=2$ and $f(-6)=37$
132410
Difficult Polynomial Question
76458
Solve the following functional equation $f(xf(y))+f(yf(x))=2xy$
99739
The diophantine equation $x^2+y^2=3z^2$
48652
Solve the functional equation $2f(x)=f(ax)$ for some $a$.
139930
Find all polynomials $p$ such that $p(x^2)=p(x)p(x+1)$
77403
Finding the minimal polynomial of $\sqrt 2 + \sqrt[3] 2$ over $\mathbb Q$.
44296
Solving a cubic polynomial equation.
131692
How to show that $f_{0}f_{1}+f_{1}f_{2}+...+f_{2n-1}f_{2n} = f^{2}_{2n}$
99835
Polynomial in $\mathbb{Q}[x]$ with root $\sqrt[3]{2}+\sqrt[3]{3}$
87331
Real polynomial in two variables
10548
The equation $-1 = x^2 + y^2$ in finite fields
144859
Finding parameters for $f(x) = x^2 + 2(m − a)x + 3am −2 = 0$ that satisfy a condition.