√(81 * 8) ​

Question

`√(81 * 8)`
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Answer 1

Explanation:

81 = 9 * 9 = 3 * 3 * 3 *3

8 = 2 * 2 * 2 *2

`√(81 * 8 ) = √(3*3*3*3*2*2*2)\\\\=3 * 3 * 2 √(2)\\\\= 18√(2)`