\[ (n^2 - 2n + 1) + n^2 + (n^2 + 2n + 1) = 425 \] - AMAZONAWS 📅 March 11, 2026 👤 scraface Mar 11, 2026
![\[ (n^2 - 2n + 1) + n^2 + (n^2 + 2n + 1) = 425 \]](https://soloferat.biz.id/images/-n2---2n--1--n2--n2--2n--1--425-.jpg)
