Answer:
The answer is "
".
Step-by-step explanation:
Given value:

They understand that, by using algebraic expressions laws, they subtract that inverse whenever we subtract powers with the same base. Every exponent's core is 2, therefore we subtract:

They have a shared denominator. It's least that is equally divided
among 8 or 2 is 8:


This gives us:

As rational notation is written as extremists, that root was its denominator as well as the power seems to be the numerator.
Which means 8 is the root and 5 the force that gives us: