f(f(x)) = rac(N/D)^3 - 3(N/D)(N/D)^2 + 1 = rac racN^3 - 3ND^2D^3 racN^2 + D^2D^2 = racN^3 - 3ND^2D^3 \cdot racD^2N^2 + D^2 = racN^3 - 3ND^2D(N^2 + D^2) - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$f(f(x)) = rac{(N/D)^3 - 3(N/D)}{(N/D)^2 + 1} = rac{ rac{N^3 - 3ND^2}{D^3} }{ rac{N^2 + D^2}{D^2} } = rac{N^3 - 3ND^2}{D^3} \cdot rac{D^2}{N^2 + D^2} = rac{N^3 - 3ND^2}{D(N^2 + D^2)}$