Question

simplify and express as positive index: (-8/3)^-7÷(-8/3)^4​

Answer 1

Answer:

using (a)^m ÷(a)^n =(a)^m-n

(-8/3)^-7-4=(-8/3)^-11

using  (a/b)^-m =(b/a)^m

so ,(-3/8)^11

simplification = -177147 /8589934592