I am lost on this problem... radical -50 times radical -2 ___ __ Ö-50 Ö-2 Don't fall for the trap of always multiplying under radicals first. Don't do that! Negative numbers under square roots must be taken out of the radical before multiplying under them: ___ __ __ _ __ _ ___ Ö-50 Ö-2 = (iÖ50)(iÖ2) = i² Ö50 Ö2 = (-1)Ö100 = (-1)(10) = -10 If you multiply under the radical before taking negative signs out of square root radicals as i's on the outside, you will get the wrong answer. Edwin AnlytcPhil@aol.com