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√(81 * 8) ​
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7 votes

√(81 * 8)
​

User Orshachar
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1 Answer

8 votes

Answer:

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)

User Piranha
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