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MathNet 2021 — Part 01 Question 46

Math Olympiad Vault · MathNet 2021 — Part 01

Question 46

A quadratic polynomial $p(x)$ with real coefficients and leading coefficient $1$ is called *disrespectful* if the equation $p(p(x)) = 0$ is satisfied by exactly three real numbers. Among all the disrespectful quadratic polynomials, there is a unique such polynomial $\tilde{p}(x)$ for which the sum of the roots is maximized. What is $\tilde{p}(1)$?
  1. $\frac5{16}$
  2. $\frac12$
  3. $\frac58$
  4. $1$
  5. $\frac98$