(9^-3/9^-7)^2
You asked:
Evaluate the expression: \({\left( \frac{{9}^{-3}}{{9}^{-7}} \right)}^{2}\)
MathBot Answer:
\[{\left( \frac{{9}^{-3}}{{9}^{-7}} \right)}^{2} = 43046721\]
\[\begin{aligned}{\left( \frac{{9}^{-3}}{{9}^{-7}} \right)}^{2}& = \left(\frac{1}{9^{3}} \cdot \frac{1}{\frac{1}{9^{7}}}\right)^{2}\\& = \left(\frac{1}{729} \cdot \frac{1}{\frac{1}{9^{7}}}\right)^{2}\\& = \left(\frac{1}{729} \cdot \frac{1}{\frac{1}{4782969}}\right)^{2}\\& = 6561^{2}\\& = 43046721\end{aligned}\]