$\sqrt (15) - \sqrt 6$
Work Step by Step
Step 1: $\sqrt 3(\sqrt 5 - \sqrt 2)$ Step 2: $\sqrt 3\sqrt 5 - \sqrt 3 \sqrt 2$ Step 3: $\sqrt (3\times5) - \sqrt (3\times2)$ Step 4: $\sqrt (15) - \sqrt 6$
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