# How do you simplify #( 3 + i ) ( 3 + i )#?

##### 1 Answer

Nov 14, 2015

FOIL and know that

#### Explanation:

If the problem were to simplify

We must distribute

We should get:

Combine like terms:

Now, it may seem that we have done all we can. However, since

Then, we combine like terms again, leaving us with our final answer: