The equation that justifies
is 
<h3>How to find equation that justifies another?</h3>
The expression given is
.
The equation that justifies
is as follows:
Therefore, using indices law,
![a^{x/y} =\sqrt[y]{a^{x} }](https://tex.z-dn.net/?f=a%5E%7Bx%2Fy%7D%20%3D%5Csqrt%5By%5D%7Ba%5E%7Bx%7D%20%7D)
Hence,
![9^{1/3}=\sqrt[3]{9}](https://tex.z-dn.net/?f=9%5E%7B1%2F3%7D%3D%5Csqrt%5B3%5D%7B9%7D)
Therefore, the equation that shows it is correct is as follows;

learn more on equation here: brainly.com/question/27740747
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