"Sal, why do we care? Why must we rationalize denominators?" Acknowledging these (possibly pleading) concerns, Sal explains the reasons behind rationalizing a denominator before demonstrating how to do it several times. Though he admits that one reason could be for "aesthetics," Sal contends that the process is essential to learn and understand.

Concepts

denominators, exponents, exponential expressions, equations

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Additional Tags

rationalizing denominators, rationalize the denominator, math

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Classroom Considerations

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