Question 776675

Please help simplify this expression. Assume all variables are positive. 
∜(32x^5 y^4 )


{{{root(4, 32x^5y^4)}}}


{{{root(4, 2^4 * 2 * x^4 * x * y^4)}}}


{{{2xy * root(4, 2x)}}}


You can do the check!! 


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