Question 68828
{{{ 5 square root of 32x^5z^10 }}}

Since we have 5th root, we need to find the following:
32 = 2*2*2*2*2
   = 2^5

x^5 = x*x*x*x*x
  = x^5

z^10 = z*z*z*z*z*z*z*z*z*z
     = z^5 * z^5
     = (z^5)^2

therefore the 5throot of 32x^5z^10 = 2xz^2