### Home > PC > Chapter 1 > Lesson 1.3.2 > Problem 1-121

1-121.

Factor each of the following expressions.

This is the difference of two perfect squares.

Factor out the common factors first.

Now you have a difference of two perfect squares. Factor again.

1-121.

Factor each of the following expressions.

This is the difference of two perfect squares.

Factor out the common factors first.

Now you have a difference of two perfect squares. Factor again.