Factoring trinomials using the diamond method, x^2 + 14x - 15

The video tutorial focuses on solving area problems by factoring quadratic expressions. It begins with identifying the quadratic expression X^2 - 15 and breaking down the middle term 14X using factors of 15. The teacher explains the importance of choosing the correct factors that multiply to -15 and add to 14. The box method is used to factor the expression, leading to the final product of (X + 15)(X - 1). The tutorial emphasizes understanding the process and verifying the solution.

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