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Home > CCA2 > Chapter 3 > Lesson 3.2.5 > Problem 3-126

3-126.

Factor each expression completely. Homework Help ✎

  1. This is a difference of two squares.

    If you don't know the pattern for difference of two squares yet, use a generic rectangle to help you.

  1. is a common factor. Factor it out. What is left is a difference of two squares, as in part (a). Factor again.

  1. You can use an area model.

  1. The common factor is .

    After you factor out you have to factor a second time.