Question

What is the `sqrt(x^2 + 4x + 4)`?

Answer 1

It is `abs(x+2)`

Explanation:

`sqrt(x^2+4x+4)=sqrt((x+2)^2)=abs(x+2)`.
`x^2+4x+4` can be simplified to `(x+2)^2` and when square rooted it would be `(x+2)`