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.
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The square root of 81 is 9. The square roots of 81 are 9 and -9.
In standard arithmetic, the only square roots of 9 are: 3 and -3 Proof: 3 x 3 = 9 -3 x -3 = 9
The two square roots of 18 are: 4.242641 and -4.242641
The two square roots are +70 and -70 .
0.64 has square roots {0.8, -0.8}.