find the cube root of negative 8 3 square root of negative 8

Answer 1

The cube root of -8 is -2, since -2 × -2 × -2 = -8.

The square root of -8 is not defined in the real number system because the square root of a negative number is not a real number. In the complex number system, the square root of -8 is written as √(-8) = 2i√2, where i represents the imaginary unit.