please solve question D for me

15. Solve the following recurrence equations using the characteristic equation. (a) In = 6 n-1 - 9tr-2 for n > 1 to=0 | tu = 1 (b) tn = 5n-1 - 8tn-2 + 4tn-3 for n > 2 to=0 t1 =1. t2 = 1 (c) tn = 2tn-1-tn-2+ n +5% for n> 1 to = 0 t = 1 (d) t = 61,-1-919-2 + (n? - 5n) 7" for n > 1 to=0 t; = 1