Write the radical expression in simplified form Assume that
     Write the radical expression in simplified form Assume that all variables represent positive real numbers  4 squareroot 324x^12y^9  4 squareroot 324x^12y^9 =. (Simplify your answer. Type an exact answer using radicals as needed.) 
  
  Solution
fourth root(324x12y9)= fourth root(4*34(x3)4*(y2)4*y )
3*x3y2 fourth root (4y)

