Question

81 raise to power 5/n and equal to 243

Answer 1

81^(5/n)=243
3^(5/n)+4=3^5
5/n+4=5
5/n=1
n=5
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Answer 2

81^(5/n) = 243
=> 3^4(5/n) = 3^5
=> 4*5/n = 5
=> 4*5/5 = n
=> 4 = n