Posted by Grace on Thursday, May 24, 2012 at 4:26pm.
put the products inside the radical and then extract perfect squares (if you're working with square roots)
sqrt(30)*sqrt(6)*sqrt(10) = sqrt(30*6*10) = sqrt(2*3*5*2*3*2*5) = sqrt(2^2*3^2*5^2*2) = 2*3*5*sqrt(2) = 30sqrt(2)