Question

Please someone also explain it too.

Answer 1

9514 1404 393

Answer:

A √40

Explanation:

The given radical expression can be written as ...

`\displaystyle 2√(n+4)=√(2^2)\cdot√(n+4)=√(4(n+4))=√(4n+16)`

The last two versions of this expression tell you two things:

• the value under the radical must be a multiple of 4
• the value under the radical is greater than 16

Only one answer choice meets these requirements:

√40