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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## Value of X ##### This topic has 5 member replies ## Value of X (X^2+2x-8)/x^2-6x+8=? A.1 B.-1 C.x/3 D.x+4/x-4 E.x+8-x-8 Im getting: (x+2)(x-4)/(x+5)(x+1) How can I proceed Site Admin Joined 01 Jan 2009 Posted: 2567 messages Followed by: 550 members Upvotes: 712 GMAT Score: 770 You are getting it a bit wrong. The correct form would be: (x+4)(x-2)/(x-4)(x-2), giving you (x+4)/(x-4) Answer D. Master | Next Rank: 500 Posts Joined 15 Jan 2009 Posted: 138 messages Upvotes: 15 Test Date: Feb 10, 2009 Both your numerator and your denominator are a bit off: Numerator = x^2 +2X -8, so you need (x - #) (X + #) where the #s are 2 apart, multiply to 8 and the larger # is + (so that you get +2x, not -2x). Those numbers are 2 and 4 such that the equation is (x - 2)(x + 4) Denominator = x^2 - 6X + 8, so now you need (x - #)(x - #) (in order to get + # at the end) and you need numbers that are 2 apart and multiply to 8, so again you have 2 and 4 so that the equation is (x - 2) (x - 4) (x - 2) (x + 4) / (x - 2)(x - 4) you can cancel out the (x-2) in both the numerator and the denominator and that leaves you with answer D. -Carrie Master | Next Rank: 500 Posts Joined 21 Jan 2009 Posted: 221 messages Followed by: 1 members Upvotes: 12 Target GMAT Score: 700+ IT IS D Master | Next Rank: 500 Posts Joined 20 Dec 2008 Posted: 160 messages Upvotes: 11 yes it is D _________________ -------------------------- i am back! Newbie | Next Rank: 10 Posts Joined 11 Jul 2008 Posted: 4 messages its D _________________ Beat The GMAT GUYS • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code • FREE GMAT Exam Know how you'd score today for$0

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