Adding two rational expression by factoring the denominator to find the LCD

The video tutorial focuses on simplifying mathematical expressions. It begins with an introduction to the importance of simplification, followed by various factoring techniques, including factoring out common terms and recognizing differences of squares. The tutorial then covers factoring trinomials and determining the least common denominator (LCD) for combining expressions. Finally, it demonstrates how to combine and simplify terms effectively, emphasizing the importance of simplification throughout the process.

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