SOLUTION: If n>0 and x^2n=4, then what does 9(x^3n)^2-13(x^2)^2n equal?

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Question 1183526: If n>0 and x^2n=4, then what does 9(x^3n)^2-13(x^2)^2n equal?
Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
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What is written in the post, can be read in several different ways, making the post ambiguous. 


I will assume that the problem is as follows.


        If n>0 and  = 4, then find   - .



If   = 4,  then   =  =  =  = 9*64 = 576;

                       =  =  =  = 13*16 = 208.


Therefore, the answer to the problem's question is  576 - 208 = 368.



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