A Amanda92 New Member Joined Mar 3, 2009 Messages 5 Gender Female HSC 2010 Jul 12, 2009 #1 simplify 2x-(x-2) ---------- x^2-4
lyounamu Reborn Joined Oct 28, 2007 Messages 9,998 Gender Male HSC N/A Jul 12, 2009 #2 Amanda92 said: simplify 2x-(x-2) ---------- x^2-4 Click to expand... top: x+2 bottom (x-2)(x+2) ans: 1/(x-2)
Amanda92 said: simplify 2x-(x-2) ---------- x^2-4 Click to expand... top: x+2 bottom (x-2)(x+2) ans: 1/(x-2)
Divinity_ Member Joined Jul 12, 2009 Messages 241 Gender Female HSC 2009 Jul 12, 2009 #3 2x - x + 2 / x^2 - 4 x+2 / (x+2)(x-2) therefore 1/ (x-2)
