If [[x]] = x^2 + 2x + 4, what is the value of [[6]]?
Choose the correct choice from the following answers:  A) 3  B) 52  C) 15  D) 19  E) 25
These functions questions might look intimidating, but they just test your knowledge about how well you can substitute values   [[x]] = x^2 + 2x + 4   [[6]] = 6^2 + 2*6 + 4 = 52. Option 52
<result>B</result>
If [[x]] = x^2 + 2x + 4, what is the value of [[6]]?