# Example 3

- Author:
- Walch Education

Rewrite the radical using the imaginary unit .

- Rewrite the value under the radical as the product of –1 and a positive value.
- Rewrite the radical
as . - If possible, rewrite the positive value as the product of a square number and another whole number.
- Simplify the radical by finding the square root of the square number. The simplified expression will be in the form whole number •
• radical.