Let $f(x) = x^2 + 4x + 2$. Find all $x$ such that $f(f(x)) = 2$.
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Find all pairs of integers $(x, y)$ such that $x^3 + y^3 = 2007$. russian math olympiad problems and solutions pdf verified
The Russian Math Olympiad is a prestigious mathematics competition that has been held annually in Russia since 1964. The competition is designed to identify and encourage talented young mathematicians, and its problems are known for their difficulty and elegance. In this paper, we will present a selection of problems from the Russian Math Olympiad, along with their solutions. Let $f(x) = x^2 + 4x + 2$
