My Math Forum Negative of an exponent

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 October 3rd, 2015, 05:41 AM #1 Newbie   Joined: Oct 2015 From: Kota Posts: 1 Thanks: 0 Negative of an exponent What will be the negative of (-2/3)^3?
 October 3rd, 2015, 06:37 AM #2 Global Moderator   Joined: Dec 2006 Posts: 19,294 Thanks: 1685 8/27
 October 3rd, 2015, 11:10 AM #3 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 894 That's pretty basic arithmetic. What was causing you difficulty?
 October 4th, 2015, 02:50 PM #4 Senior Member   Joined: Jan 2014 From: The backwoods of Northern Ontario Posts: 372 Thanks: 68 (-2/3)^3= (-2/3)(-2/3)(-2/3) = -8/27 Therefore the negative of this result is 8/27. This number is not the negative of an exponent. Maybe you are asking about the negative of the exponent 3 in the expression. In that case you would have (-2/3)^-3 = (3/-2)(3/-2)(3/-2) = 27/-8
 October 4th, 2015, 10:06 PM #5 Newbie     Joined: Aug 2015 From: USA Posts: 29 Thanks: 0 (-2/3)^3= (-2/3)(-2/3)(-2/3) = -8/(27) for negative it will be reciprocal of above...however it should be remember that just multiply at the rate which is exponent. and - - = +, - + = -

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