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Solving an Equation with Radicals - Problem 10

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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

Often if there is an equation with a rational (or fractional) exponent, we can evaluate that term to get some kind of integer or base. But, in the case where the exponential term can not be easily simplified, we can raise both sides of the equations to the reciprocal of the fractional exponent. As always, it's a good idea to check your final answer in the original equation using substitution.

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