What type of roots does the equation š‘„ ^2 + 4 = 0 have?

What type of roots does the equation š‘„ ^2 + 4 = 0 have?

Explanation

Since the square root of a negative number involves ā€œiā€ (imaginary unit), the roots are imaginary.

They are not real, not rational, and not irrational in the real-number sense.