# Polynomials

Algebra Level pending

Let $$P(x)$$ and $$Q(x)$$ be two cubic polynomials such that $$P(0) = - 24$$, $$Q(0) = 30$$ and $$P(Q(x)) = Q(P(x))$$ for all real $$x$$. Determine $$P(3) + Q(6)$$.

×