If n is positive integer greater than 1 and a & b both are positive real numbers then,
Consider that on occasion we can let a or b to be negative and yet have these properties work. While we run across those conditions we will acknowledge them. Though, for the remainder of this section we will suppose that a and b has to be positive.
Also note that whereas we can "break up" products & quotients under a radical we can't do the similar thing for sums or differences. In other terms,