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Anonymous
The square root of 289 is 17
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64 : -8 -(64) 1/2 32 64 1/2
perfect square
The square root of 81 is 9. The square roots of 81 are 9 and -9.
The square root(s) of 64: ± 8
The square roots are approx -16.6 and +16.6