Question

Write the first five terms of the geometric sequence. an = -7an-1; a1 = -2

Answer 1

\[a_n = -7*a_{n-1}\]

replace 2 into n and you'll get that \[a_2 = -7*a_{1} = -7*-2 = 14\]

Answer 2

-2 14 ?? ?? ??
In case you haven't realized the ratio you're constantly multiplying by is -7