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Multiplying and Distributing Radical Expressions - Problem 7

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Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

When you're multiplying fractions that have only integers in top and bottom, you could choose to reduce the fractions first and then multiply, OR to multiply first and then reduce the product later. The same is true if your fractions have radicals, or roots in them- you could simplify the roots to begin with, or after you've multiplied- it's your choice. Here we do problems in both ways to show how you'll get the same answer either way. Often, reducing first means you'll have smaller numbers to work with later.

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