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Rationalizing the Denominator

Rationalizing the Denominator

Author: Graham Pardun

This lesson demonstrates how to apply the properties of square roots to rationalize the denominator of fractions that contain radicals.

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There's one situation in life in which it's a good thing to rationalize, and that's when you've got a radical expression in your denominator. Here's how to deal with rational expressions with radicals in the denominator, including when you need to use the "conjugate" (sounds mysterious, right?)