I. this paper we consider the initial boundary value problem for a nonlinear damping and a delay term of the form: |u_t|^lu_tt- u (x, t)- u_tt+_1|u_t|^m-2u_t\\+_2|u_t(t-)|^m-2u_t(t-)=b|u|^p-2u, with initial conditions and D. boundary conditions. U. appropriate conditions on, and we prove that there are solutions with negative initial energy that blow- up finite time if ., “Blow-up of Result in a Nonlinear Wave Equation with Delay and Source Term”, DNC, vol. 10, no. 4, pp. 733–741, Aug. 2026, doi: 10.5890/DNC.2021.12.012.