Factorization Using Difference of Squares

When you learned how to multiply binomials we talked about two special products.

\(\begin{align*} \text{The sum and difference formula:} \quad (a + b)(a - b) & = a^2 - b^2\\ \text{The square of a binomial formulas:} \qquad \quad \ \ (a + b)^2 & = a^2 + 2ab + b^2\\ (a - b)^2 & = a^2 - 2ab + b^2\end{align*}\)

In this section we'll learn how to recognize and factor these special products.


Source: cK-12, https://www.ck12.org/algebra/factor-difference-of-squares/lesson/Factorization-using-Difference-of-Squares-ALG-I/
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 License.