The thing that I leran in this week is ‘how to convert to entire radicals’ , an entire radical of index 3 may be expressed as a mixed radical when the highest perfect cube has been factored out of the entire radical.A mixed radical of index 3 may be expressed as an entire radical by converting the number outside the radical symbol into a radical and then multiplying it by the radicand.
(Pic: I drew it by myself)
Entire to mixed
#3 tell us how many in a group
This also works for other roots (4th,5th,6th,7th…)