Try numerical: $ f(1) = (1 - 3)/(1 + 1) = -2/2 = -1 $, $ f(-1) = ((-1)^3 - 3(-1))/(1 + 1) = (-1 + 3)/2 = 1 $, so $ f(f(1)) = f(-1) = 1 = x $. So $ x = 1 $ is a solution. - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$Try numerical: $ f(1) = (1 - 3)/(1 + 1) = -2/2 = -1 $, $ f(-1) = ((-1)^3 - 3(-1))/(1 + 1) = (-1 + 3)/2 = 1 $, so $ f(f(1)) = f(-1) = 1 = x $. So $ x = 1 $ is a solution.$

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