SOLUTION: -3√3-√12

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Question 294596: -3√3-√12
Answer by Monkibat(7) About Me  (Show Source):
You can put this solution on YOUR website!
-3sqrt%283%29-sqrt%2812%29
First leave -3sqrt%283%29 alone for now. The goal in this problem is to get the numbers under the radican to be the same. sqrt%2812%29 can be broken down into sqrt%284x3%29. 4 is a perfect square, the square root of 4 is 2. The 2 comes out of the radican and the 3 under the radican stays there because 3 is not a perfect square. The sqrt%2812%29 is now 2sqrt%283%29. Now we have the problem -3sqrt%283%29-2sqrt%283%29. Since the numbers under the radican are the same we can subtract -3-2 and keep sqrt%283%29, -3-2=-5. The answer is: -5sqrt%283%29.