❖ Algebraic Proof of \(a^2 – b^2 = (a + b)(a – b)\)

In this lesson, we provide a step-by-step algebraic proof of the difference of two squares formula:

\(a^2 – b^2 = (a + b)(a – b)\)

\(a^2 – b^2\) is called the difference of two squares, and it appears frequently in algebra and factorization.