Algebra Special Product

Use these 3 Special-Product Rules to create 3 proplems to find the square of bionomial ; 

1-   (a + b) (a - b) = a^2 - b^2 

2-   (a - b)^2  = (a - b) - (a - b) = a^2 - 2ab + b^2

3-  (a + b)^2 = (a + b) (a + b) = a^2 + 2ab + b^2