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The square root of 81 is: ±9 (9 or -9)

A square root is a number which, when multiplied by itself, equals the original number. As 9 x 9 = 81 and -9 x -9 = 81, the answer is plus or minus nine.

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7y ago

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More answers

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4y ago
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4y ago
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9

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4y ago
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Anonymous

4y ago
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Q: What is the square root of 81?
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