Rationalizing a denominator help me pass my math class

The video tutorial explains how to simplify a radical expression, specifically 5 divided by the square root of 8. It begins by discussing the properties of square roots and the challenges of dividing by irrational numbers. The tutorial then demonstrates how to rationalize the denominator by multiplying the numerator and denominator by the square root of 8, resulting in a simplified expression. The process ensures that the denominator is no longer irrational, making the expression easier to work with.

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