# SOLUTION: I need so much help on subtracting square roots. The question is : find the differnece of square root of 288 and square root of 72. please help

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 Question 15697: I need so much help on subtracting square roots. The question is : find the differnece of square root of 288 and square root of 72. please helpAnswer by gsmani_iyer(180)   (Show Source): You can put this solution on YOUR website! First of all make the above two square roots into surds as below: = = Now we have find out the difference between the above 2. Since surds are irrational numbers, they can be added or subtracted like real numbers. i.e. - =12 - 6 = (12-6) = 6 . Answer The same answer can be written as by bringing the square of 6 inside the root and multiplying it by 2. In the similar manner, you can do the additions also. I hope this is clear to you. gsm