In standard arithmetic, the only square roots of 9 are: 3 and -3 Proof: 3 x 3 = 9 -3 x -3 = 9
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The square root of 81 is 9. The square roots of 81 are 9 and -9.
The two square roots of 9 are 3 and -3. A square root is a value that, when multiplied by itself, gives the original number. In this case, 3 multiplied by 3 equals 9, and -3 multiplied by -3 also equals 9.
The square root of 81 is: ± 9
Nine :) * * * * * Sort of. ± 9 are the square roots (not rout!) of 400.
81 because there are no negative square roots