How to simplify a rational expression using factoring

The video tutorial covers simplifying fractions by factoring both the numerator and denominator. It explains how to factor trinomials where A equals 1, using the example of X^2 + 3X - 18, and demonstrates the difference of squares method with X^2 - 36. The division property is applied to simplify expressions when terms are identical in the numerator and denominator. The final simplified expression is X - 3 / X - 6. The lesson concludes with a recap of the key points discussed.

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