\[ f'(1) = 5(1)^4 - 9(1)^2 + 2 = 5 - 9 + 2 = -2 \] - AMAZONAWS 📅 March 11, 2026 👤 scraface Mar 11, 2026
![\[ f'(1) = 5(1)^4 - 9(1)^2 + 2 = 5 - 9 + 2 = -2 \]](https://soloferat.biz.id/images/-f1--514---912--2--5---9--2---2-.jpg)
