Question: a expression without rootof

This question is related to the Question Finding root for a complicated term

actually i dont know how a expression which has rootof transform to a expression without rootof !

for example how to express w explicitly in term of m !

thank you for your help

 

ee.mw

w = ((-1-4*m)*RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)-16*m-5)*RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)/(((2*m+1)*RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)+8*m+4)*(2*m*((-1-4*m)*RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)-16*m-5)/((2*m+1)*RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)+8*m+4)+4*m+RootOf((2*m+1)*_Z^2+(6*m+4)*_Z-6*m)*m))



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