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Fractional exponents

Date: 6/16/96 at 18:8:48
From: David Papernick
Subject: Fractional exponents

(-64)    How would you go about solving this problem? Please show all 
steps. Negative 64 in parenthesis to exponent 2/3.

Date: 6/16/96 at 18:19:40
From: Doctor Anthony
Subject: Re: Fractional exponents

Take the cube root of -64.  This gives (-4).  
Now square (-4) to get 16.

So we have (-64)^(2/3) = 16

-Doctor Anthony,  The Math Forum
 Check out our web site!  http://mathforum.org/dr.math/   
Associated Topics:
Middle School Exponents

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