SOLUTION: I do not understand - please help!! {{{ (18 + sqrt 567)/9 }}} That is 18 plus the square root of 567 over 9. Thanks!

Algebra ->  Radicals -> SOLUTION: I do not understand - please help!! {{{ (18 + sqrt 567)/9 }}} That is 18 plus the square root of 567 over 9. Thanks!      Log On


   

Question 39073: I do not understand - please help!!
+%2818+%2B+sqrt+567%29%2F9+
That is 18 plus the square root of 567 over 9.
Thanks!
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
From (18 + sqrt(567))/9, we can simplify
sqrt(567) = sqrt(7)*sqrt(81) = 9*sqrt(7)
Now plugging back in we have
(18 + sqrt(567))/9 =
(18 + 9*sqrt(7))/9 =
[9(2 + sqrt(7)] / 9 =
2 + sqrt(7)