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Solving an Equation with Radicals - Problem 11

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

To solve an equation with a root, (we'll assume here a square root,) one common solving technique is to square both sides. If there are factors that are not roots, we need to square them as well. This will work when the root is multiplied by a constant- if it is added or subtracted to a root, you will need to use binomial expansion or FOIL'ing to square both sides.

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