Math 20-1 Chapter 0 Lesson 4: Factoring a^2x^2-b^2y^2 and a^2(f(x))^2-b^2(f(x))^2

In this lesson, factoring using the difference of squares method is expanded upon. Examples include difference of squares of greater difficulty. Difference of squares may include a combination of numbers, polynomials, or other functions. The powers involved may also be greater than 2,1, and 0; such as 4,2, and 0 or 6,3, and 0.
Although the method of difference of squares is the same, the approach requires closer detail.