Question

What’s the answer?? need help

Answer 1

Answer:

option A.

$a^{9}b^{6}$

Step-by-step explanation:

To solve this, we need to use the following exponent rules:

Quotient rule: (a^n)/(a^m) = a^(n-m)

Power rule: (a^n)^m = a^nm

Power of a product rule: (ab)^n = (a^n)(b^n)

Then, we have the following expressions:

$[\frac{a^{-8}b}{a^{-5} b^{3}}}]^{-3}=[a^{-8+5}b^{1-3}}}]^{-3}=[a^{-3}b^{-2}]^{-3} =a^{9}b^{6}$

So the correct result is option A.

$a^{9}b^{6}$