I'm not quite sure, but when the number inside the radical (square root sign) is negative, there is a no real-number solution.
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The square root of a negative number is not real.
you can square a negative number but you can not square root a negative number
Nothing. You cannot have a square root of a negative number. The square root of negative one is called i, but i is an imaginary number. It does not exist and does not follow the properties of real numbers. (For example, if a and b are positive, then the square root of a times the square root of b is the square root of ab. But the square root of -7 is not the square root of 7 times i.)
A negative square root is an imaginary number.
square root of a negative number is imaginary square root of negative 1 is defined as i square root of negative 144 is sqrt ((144)(-1)) = 12i