Question

38-√-200+ √121

Rewrite expression using i

Answer 1

`49 - √(200)i`

Explanation:

Oh man, i is very fun! Remember: i =
`√(-1)`

The only negative value here is
`√(-200)`

We can rewrite this as:
`√(200) * i`

Simplify our radicals:

`√(200) = 5*2√(2) = 10√(2)\\ √(121) = 11`

Now, our equation should read like this:

`38 - √(200)i + 11\\`

Simplify those whole numbers:

`49 - √(200)i`

And there we have our answer