Negative 64 is the square root of an integer.
The square root of -64 is not an integer.
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The square root of 64 is +/- 8
Yes, just take its square root. Since it is an integer, 64 is a perfect square. Alternately, since the square of this integer is 64, 64 is a perfect square, by definition.
No. It is a complex number, but that is something different.
sqrt(1) + sqrt(1) + sqrt(64) = +/- 1 +/- 1 +/- 8 positive square root is 10 negative square root is -10 By permutating the +/- it could also be +8, -8 ,
The square root of 64 equals 8. 8x8=64