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 June 20th, 2009, 12:43 AM #1 Newbie   Joined: Dec 2008 Posts: 27 Thanks: 0 Sketch this circle... Sketch the graph of the following: 2x^2 + 2y^2 + x + y = 0
 June 20th, 2009, 12:34 PM #2 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,946 Thanks: 1137 Math Focus: Elementary mathematics and beyond Re: Sketch this circle... Completing the square $2x^2 + x + 2y^2 + y= 0$ $2(x^2+\frac{1}{2}x)+2(y^2+\frac{1}{2}y)=0$ $(x+\frac{1}{4})^2+(y+\frac{1}{4})^2=(\frac{1}{\sqr t{8}})^2$

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