Explanation:
do I understand you correctly ?
2p^(3/2) = 54
then
p^(3/2) = 27
(p^(3/2)² = 27²
p^(3×2/2) = 27²
p³ = 27² = (3³)² = (3²)³ = 9³
p = 3
you do remember that (x^a)^b = x^(a×b).
and therefore x^(a×b) = (x^b)^a.
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