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

 February 27th, 2012, 08:10 PM #1 Newbie   Joined: Feb 2012 Posts: 15 Thanks: 0 Exponent Laws ((-5k^3 x k^2)/(k))^2(((-k)^5 x k^2)/(5k^2)) heres my attempt but i cant get it , i know the answer is -5k^13. (after i simplify) (25k^ x ((-k)^5/(5)) = 5k^3 plz help February 27th, 2012, 09:16 PM #2 Newbie   Joined: Feb 2012 Posts: 15 Thanks: 0 Re: Expontent Laws nvm i just realized my mistake 5 minutes after i posted sorry. February 28th, 2012, 08:48 AM #3 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 Re: Expontent Laws Please do not use "x" as multiplication sign; standard is now "*" You had this to simplify: Code:  -5 * k^3 * k^2 --------------^2 * (-k)^5 * k^2 k ------------------------------- 5 * k^2 Yout calculation of 25k^8 for this was correct: Code: -5 * k^3 * k^2 --------------^2 k As next step, do the division by 5k^2: 25k^8 / 5k^2 = 5k^6 So now you need only worry about (-k)^5 * k^2 And that simplifies to -k^7 So wrap up: 5k^6 * (-k^7) = -5k^13 That's just a suggestion as to steps to follow; in other words, do the easiest/obvious first. Tags exponent, laws Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post BreakingTheCode Algebra 1 March 18th, 2014 08:57 PM ChloeG Algebra 3 May 3rd, 2011 03:34 AM pappi Applied Math 2 March 25th, 2011 12:03 AM dathomiedre Algebra 1 January 25th, 2010 02:17 PM mikel03 Algebra 1 April 1st, 2009 05:30 AM

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