document.write( "Question 1121380: Find the center and radius of the following circle:
\n" ); document.write( "x2 + y2 - 12x + 8y - 29 = 0
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Algebra.Com's Answer #737252 by Alan3354(69443)\"\" \"About 
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Find the center and radius of the following circle:
\n" ); document.write( "x2 + y2 - 12x + 8y - 29 = 0
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\n" ); document.write( "Complete the square for x and for y.
\n" ); document.write( "x^2 - 12x + y^2 + 8y - 29 = 0
\n" ); document.write( "x^2 - 12x + y^2 + 8y = 29
\n" ); document.write( "x^2 - 12x + 36 + y^2 + 8y + 16 = 29+36+16 = 81
\n" ); document.write( "(x-6)^2 + (y+4)^2 = 9^2
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\n" ); document.write( "(x-h)^2 + (y-k)^2 = r^2 is a circle - center at (h,k), radius r
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