# How do you use the binomial formula to expand #[x+(y+1)]^3#?

##### 1 Answer

#### Explanation:

This binomial has the form

We expand the binomial by applying this property:

Where in given binomial

We have:

In the above expand we still have two binomials to expand

For

So

For

So

Substituting (2) and (3) in equation (1) we have:

We have to add the similar terms but in this polynomial we don't have similar terms , we can arrange the terms .

Thus,