Since you aren't able to make any start on these exercises, I will guess that you are requesting lessons.
To learn how to multiply polynomials, try here.
To learn how to factor quadratics, try here.
To learn how to do simple factoring and how to factor differences of squares, try here and then here.
Once you have learned the basic terms and techniques, please attempt the exercises. If you get stuck, you can then reply with a clear listing of your steps and reasoning so far.