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Multiplying Radicals of the Same Root - Problem 3

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

We wish to multiply binomials that have roots, or radicals, in one or more terms. We can approach this in the same way we would a polynomial product, where we often use FOIL to multiply the first terms, outside terms, inside terms, and then last terms. From there, we'll combine the radicals that have the same radicand, and combine the integers. If you're careful with parentheses, you can check your answer on a calculator with decimal approximations.

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