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MathNet 2011 Question 97

Math Olympiad Vault · MathNet 2011

Question 97

Let $n$ be a positive integer. Prove that all roots of the equation
$$
x(x+2)(x+4) \ldots(x+2n) + (x+1)(x+3) \ldots(x+2n-1) = 0
$$
are real and irrational.