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September 17, 2014

September 17, 2014

Posted by **Amary** on Thursday, January 10, 2013 at 12:00pm.

- College Algebra -
**Steve**, Thursday, January 10, 2013 at 12:07pmrearrange things a bit:

x^2+14x + y^2+18y = -81

x^2+14x+49 + y^2+18y+81 = -81 + 49 + 81

(x+7)^2 + (y+9)^2 = 49

now the rest is easy.

C'mon back if you get stuck.

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