To solve this problem, we need to remember the rule of multiplying powers with the same base:
a^m x a^n = a^(m+n)
In this case, we have:
9^-5 x 9^-3 = 9^(-5-3)
Simplifying the exponents, we get:
9^(-8)
Therefore, the final answer is 1/9^8 or 1/43046721.
9^-5 x 9^-3
1 answer