Continue the Sequence

What are the nests two terms in the sequences?

1/5, 0, 1, -2, 9, -28, 101 ……….

Answer:   -342, 1189 - the only way to obtain the law in this case is by the system of trails.

Tn = 5T n-2 -2T n-1

Hence T₈ = (5X – 28) – (2 x 101) = -342