Simplifying a radical binomial squared by using foil, (3sqrt(2) - 2sqrt(3))^2

The video tutorial explains how to square expressions, emphasizing the importance of multiplying the expression by itself rather than distributing the square across a binomial. The instructor introduces the FOIL method to simplify expressions, breaking down each step: first, outer, inner, and last terms. The tutorial concludes with simplifying the expression and calculating the final result, highlighting common mistakes and providing alternative methods like the box method.

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