What is square root 54 in its simplest form?

##sqrt54=3sqrt6##
To convert ##sqrt54## in its simplest form we should first factorize ##54## and then take by taking out pairs of primes.
##sqrt54##
= ##sqrt(2xx3xx3xx3)##
= ##sqrt(2xx3xxul(color(red)(3xx3)))##
= ##3sqrt(2xx3)##
= ##3sqrt6##