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GMAT Prep - Math - Algebra - Fractional Exponents by Knewton

Go to http://www.knewton.com/gmat/ for hundreds of GMAT math and verbal concepts, thousands of practice problems and much more. Knewton GMAT is a GMAT prep course that redefines everything you thought you knew about online learning. A root can be expressed as a reciprocal of an exponent. Check out these examples. The n root of x is equal to x raised to the 1 over n power. That's what reciprocal means. If we have 100 to the ? power, that's the same thing as saying the square root of 100 or 10. Similarly, 8 to the 1 over 3 power is the same thing as the cube root of 8, which is 2. Subscribe to this channel for tips, explanations, and Q&A about the GMAT and getting your MBA.
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