Math Problem Solver

let Dk be the determinant of the three by three matrix give as the first row being 1, 2k, 2k-1, the second row is n, $n^{2}$+n+2, $n^{2}$, the third row is n, $n^{2}$+n, $n^{2}$+n+2

if the sum of Dk from k=1 to n is 96 find n