What is the radical conjugate of $5 - 6\sqrt{2}$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the radical conjugate of $5 - 6\sqrt{2}$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5+6\sqrt{2}
What is the radical conjugate of $5 - 6\sqrt{2}$?
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