Answer:

Explanation:
Given:
The polynomial is 
 .
.
We use the FOIL method:
So, we first multiply first terms of each binomial.
⇒ 

Next, we multiply the outer terms.
⇒ 

Next, we multiply the inner terms.
⇒ 

Lastly, we multiply the last terms.
⇒ 

Now, we add all the products to get the answer.
Therefore, 
