Question 1099470
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The 6-th term is  {{{C[9]^5*((3x^2)^4)*(-1/x)^5}}} = {{{((9*8*7*6)/(1*2*3*4))*3^4*x^8*(-1)^5*(1/x^5)}}} = 


= {{{-126*3^4*x^3}}} = {{{-10206*x^3}}}.
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