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(9^nxx3^2xx3^n-(27)^n)/((3^3)^5xx2^3)=1/...

`(9^nxx3^2xx3^n-(27)^n)/((3^3)^5xx2^3)=1/27`

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(9^(n)xx3^(2)xx3^(n)-(27)^(n))/((3^(3))^(5)xx2^(3))=(1)/(27)

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