Question 14
Find all functions $f:\mathbb R\to\mathbb R$ satisfying
$$f(x^2y)+2f(y^2)=(x^2+f(y))f(y)$$
for all $x,y\in\mathbb R$.
$$f(x^2y)+2f(y^2)=(x^2+f(y))f(y)$$
for all $x,y\in\mathbb R$.
Math Olympiad Vault · MathNet 2020 — Math Olympiad Vault — Part 04