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

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Dividing Complex Numbers - Problem 7

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

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Here we will be simplifying roots of fractions where either the numerator or the denominator is negative. Your goal is to have no square roots at all, particularly no square roots of negative numbers, in the denominator. If your denominator is the root of a positive number, just multiply top and bottom both by the root of that number. If the denominator is the root of a negative number, multiply top and bottom both by i and that root. There are multiply ways to arrive at the correct answer- you'll be basing your work on the idea that "i" squared is negative one.

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