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A portion of the graph of  is shown in red below, where  is a quadratic function. The distance between grid lines is  unit.

What is the sum of all distinct numbers x such that f(f(f(x)))=-3?

 

Link to the graph: https://latex.artofproblemsolving.com/a/5/5/a55ff48c3dfe700194d16e1a80c027d03e698b32.png

 May 17, 2021
edited by Guest  May 17, 2021
edited by Guest  May 17, 2021
 #1
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The sum of all the solution is 27.

 May 31, 2021

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