S = rac(a + b)^2 + (a - b)^2(a - b)(a + b) = rac2a^2 + 2b^2a^2 - b^2. - AMAZONAWS

Simplifying the Expression: $ S = rac{(a + b)^2 + (a - b)^2}{(a - b)(a + b)} $

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$S = rac{(a + b)^2 + (a - b)^2}{(a - b)(a + b)} = rac{2a^2 + 2b^2}{a^2 - b^2}.$