Respuesta :

Hey there!

[tex]\large\boxed{n^2+4n+3}[/tex]

Let's FOIL: First, Outside, Inside, Last.

F: n x n --> n²

O: n x 1 --> n

I: 3 x n --> 3n

L: 3 x 1 --> 3

So we have four terms:

n² + n + 3n + 3

Simplify like terms.

n² + 4n + 3

Hope this helps!

Answer:

n2+4n+3

Step-by-step explanation:

Ok... it's actually simple

But you will have to follow the step by step procedure

(n+3)(n+1)

This means that we will use everything in first bracket to multiply the other one

It gives

n2+n+3n+3

Further calculation gives

n2+4n+3

Therefore the final answer is n2+4n+3