With this radical n equals S r exponent-2 solve for r?

Answer 1

sqrt(n) = S*r2

sqrt(n)/S = r2 sqrt(sqrt(n)/S) = r

or

4th root of n/sqrt(S) = r.

If your equation was sqrt(n) = S*r-2

sqrt(n) = S*(1/r2)

sqrt(n)/S = 1/r2

S/sqrt(n) = r2 sqrt(S/sqrt[n]) = r

or

sqrt(S)/4th root of n = r