Prove that there exists a polynomial P(x) with real coefficients and degree greater than 1 such that both of the following conditions are true
⋅ P(a)+P(b)+P(c)≥2021 holds for all nonnegative real numbers a,b,c such that a+b+c=3
⋅ There are infinitely many triples (a,b,c) of nonnegative real numbers such that a+b+c=3 and P(a)+P(b)+P(c)=2021 algebrapolynomialThailand online MO