Introduction to rationalizing the denominator to simplify a radical expression

The video tutorial explains how to divide radicals, focusing on the challenge of dividing by irrational numbers. It introduces the concept of rationalizing the denominator by multiplying the numerator and denominator by the same irrational number to create equivalent fractions. The tutorial emphasizes the importance of maintaining the value of the ratio while simplifying the expression. The process is demonstrated through examples, highlighting the mathematical principles involved.

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