Let $ b = -a $, then (2): $ 2a(-a) = -2a^2 = -2 \Rightarrow a^2 = 1 \Rightarrow a = \pm 1 $ - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$Let $ b = -a $, then (2): $ 2a(-a) = -2a^2 = -2 \Rightarrow a^2 = 1 \Rightarrow a = \pm 1 $$