Answer:
54√2
Explanation:
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The answer is 54√2
3√3 × 6√6
(3 × 6) × (√3 × √6)
18 × (√18)
18 × 3 × (√2) [ ∵ √18 = √2 × √3 × √3 ]
Thus, The answer is 54√2
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