Question

$(6 \sqrt{6} ) {}^{2}$
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Answer 1

Step-by-step explanation:

= ( 6√6 )² .

= 6² × 6 .

= 36 × 6 .

= 216 .

Answer 2

Step-by-step explanation:

We have to remove first square root

$= {(6 \sqrt{6}) }^{2} \\ = 6 \times 6 \times 6 \\ = {6}^{3} \\ = 216$