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Question: explicit root not Root Of

Question:explicit root not Root Of

adel-00 135 Maple 15
root
April 14 2013
0

Helo every one,

I'm trying to find the positive real root from:

and substitute it in:

my prog is:

eq5:=u->-3*b*k*u^2-3*b*k^2*u^4-k^3*u^6*b+k*u+5*k^2*u^3-b:  

                   (solve(eq5(u),u)): S:=array([],1..3): S[1]:=(eval(sol[1])):S[2]:=sol[2]:S[3]:=sol[3]:

g:=eval(subs(u=S[1],dadv));

please check this. 
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