Question 589620
{{{ (3) sqrt (11/3) +(5) sqrt (3/11) - sqrt (297) }}} 

Rationalize the denominator of the first two terms


{{{ (3) sqrt ((11*3)/(3*3)) +(5) sqrt ((3*11)/(11*11)) - sqrt (297) }}} 


{{{ (3) sqrt ((11*3)/(9)) +(5) sqrt ((3*11)/(121)) - 3sqrt(33) }}} 


{{{ (3/3) sqrt (33) +(5/11) sqrt (33) - 3sqrt(33) }}} 

{{{(-17sqrt(33))/11}}}