Question

Please help.
Simplify. Question : http://gyazo.com/2f1932e4c239c94881a0002a3a5a78dc

Answer 1

This is the rule for fractional exponents:

\(\Large a^{\frac{m}{n}} = \sqrt[n]{a}^m = (\sqrt[n]{a})^m \)

For you, a = 8, m = 2, and n = 3.

Answer 2

where should I filter in a, m, and n?

Answer 3

Here's an example of a problem similar to yours using different numbers.

\(\large 16^{\frac{3}{4}} = ( \sqrt[4]{16})^3 = 2^3 = 8\)

Follow the example using your numbers.