Question

Simplify the square root of negative 18

Answer 1

`3i√(2)`

Explanation:

If we have the expression
`√(-18)`, we can divide -18 by 2.

`√(2\cdot-9)`

The square root of 9 is 3, and since we’re finding the square root of a negative number, we append the “i” to the term: so 3i.

This goes outside the root, making the expression
`3i√(2)`.

Hope this helped!