Find the root(s) and simplify the expression! Problem: 81 1/2

Question

I need too show my work n know the answer!

Answer 1

When you raise a number to the power of a fraction, it's the same as taking the root of that number. So, when we raise a number to a 1/2, we are actually taking the square root of the number:

81^1/2 = √81 = 9