###### Asked in Math and Arithmetic

Math and Arithmetic

# What is the square root of -28?

## Answer

###### Wiki User

###### December 24, 2009 3:42PM

the square root of -28 is the square root of -1 time the square
root of 28. The square root of -1 is not a real number, it is
represented by *i*. The square root of 28 is the square root
of 4 times the square root of 7 (4*7=28) The square root 4 is equal
to 2, and the square root of 7 cannot be simplified.

The answer is **2****i****√7.**

## Related Questions

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### Is there a square root of -28?

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### Why isn't 28 a square number?

28 is not a perfect square. A perfect square is an
integer that is the square of another integer. 9 is a perfect
square; it equal to 3 squared, or 3 X 3. Often, such numbers are
called simply square numbers. While 28 is not a perfect square, it
is a square number in the sense that it has a square root. by
definition, the square root of 28 times itself equals 28.