Find the value of a.

Perimeter = 36.4 inches

a = ___ inches

2 Find  

Hence find  , simplifying your answer.

1. Expand using any method of choice.

2. Expand using any method of choice.

3. Add the expansions from the above two and comment on any observations you make.

4. Expand  

5. Write down 10 rows of the pascals triangle. Make 4-5 observations about patterns that you can make out from the numbers in the triangle. For example: the numbers along the two sides of the triangle are all 1 .