Answer:
b^12
Explanation:
(b^9) / (b^-3)
exponent rule : (b^x) / (b^y) = b^(x - y)
(b^9) / (b^-3) = b^(9 - (-3) = b^(9 + 3) = b^12 <==
5.6m questions
7.3m answers