Chapter 12 Sequences and Series - 12.3 Analyze Geometric Sequences and Series - 12.3 Exercises - Skill Practice - Page 814: 29

See below

The sequence is geometric with first term $a_1=-2$ and common ratio $r=6$. So, a rule for the nth term is:$$a_n=a_1r^{n-1}=-2*6^{n-1}$$ The first 6 terms are $a_1=-2\\a_2=-12\\a_3=-72\\a_4=-432\\a_5=-2592\\a_6=-15552$