posted by jason .
i know how to simplify radicals but.. I don't get this one.
behind of the radical (square root sign) there is a big gap before the number.
Many people are saying it's a typo, but.. i don't know.
there are a couple like that.
square root of "space" 72
is this a different problem than the square root of 72?
I think it is a typo also. The square root of 72 is sqrt(36*2)= 6 sqrt(2)