SOLUTION: can someone tell me if i simplified this right? 21+sqrt{{{63}}}/3 =7+sqrt{{{63}}}

Algebra ->  Radicals -> SOLUTION: can someone tell me if i simplified this right? 21+sqrt{{{63}}}/3 =7+sqrt{{{63}}}      Log On


   

Question 79083: can someone tell me if i simplified this right?
21+sqrt63/3
=7+sqrt63
Answer by ptaylor(2198) About Me  (Show Source):
You can put this solution on YOUR website!
21%2B%28sqrt%2863%29%2F3%29 and this equals
21%2B%28sqrt%287%2A9%29%2F3%29 which equals
21%2B%283sqrt%287%29%2F3%29 and this reduces to:

21%2Bsqrt%287%29------------------------------------ans
CK
Using a calculator
21%2B%28sqrt%2863%29%2F3%29=23.6457
21%2Bsqrt%287%29=23.6457

Hope this helps-------ptaylor