ANSWER
a1 = -6
a2 = 30
a3 = -150
a4 = 750
a5 = 3750
EXPLANATION
The first 5 terms are a1, a2, a3, a4 and a5. To find them we just have to replace n by the number of term 2, 3, 4, or 5. For the first term we don't have to do this because it's already given:
[tex]a_2=-5a_1=-5\cdot(-6)=30[/tex][tex]a_3=-5a_2=-5\cdot30=-150[/tex][tex]a_4=-5a_3=-5\cdot(-150)=750[/tex][tex]a_5=-5a_4=-5\cdot750=3750[/tex]
