Answer:
Option C - 1/81
Step-by-step explanation:
9^(-2) = 1/(9^2) [ Because a^(-m) = 1/(a^m) ]
so, 1/(9²) = 1/81.
Hope this helps you.
Answer:
the factors of x^3-1 are 
Step-by-step explanation:
We need to find factors of x^3 -1

So, the factors of x^3-1 are 