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2 October, 16:02

Using the following equation, find the center and radius of the circle by completing the square. x2 + y2 - 10x - 14y - 7 = 0 center: (-5, - 7), r = 81 center: (-5, - 7) r = 9 center: (5, 7), r = 81 center: (5, 7), r = 9

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  1. 2 October, 16:42
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    I dont understand the question?

    to co. plete the square you have x2-10x+25+y2-14y+49=7+25+49 where 7+25+49 is the radius and - 5,-7 is the center
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