The square root of -64 is 8i. ' i ' is the unit imaginary number, equal to the square root of -1, or 1 at an angle of pi/2.
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Negative 64 is the square root of an integer. The square root of -64 is not an integer.
The square root of 64 equals 8. 8x8=64
The square root of 64 is ± 8
the square root of 64 is 8
The square root of 64 is 8(8 x 8 = 64)