Question

what is the simplified version of the following expression

Answer 1

Answer:

  D.  5^8/9^18

Step-by-step explanation:

The applicable rule of exponents is ...

  (a^b)^c = a^(bc)

__

  $\left(\dfrac{5^4}{9^9}\right)^2=\dfrac{5^{4\cdot 2}}{9^{9\cdot 2}}=\dfrac{5^8}{9^{18}}$