document.write( "Question 963056: What is the center of the circle given by the equation x^2 + y^2 - 10x + 14y+ 10 =0 \n" ); document.write( "
Algebra.Com's Answer #588378 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2+%2B+y%5E2+-+10x+%2B+14y%2B+10+=0+\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-10x+%29%2B+%28y%5E2%2B+14y%29=-10\" ..............complete square\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-10x%2B_+%29-_%2B+%28y%5E2%2B+14y%2B_%29-_=-10+\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-10x%2B5%5E2+%29-5%5E2%2B+%28y%5E2%2B+14y%2B7%5E2%29-7%5E2=-10+\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x+-+5%29%5E2+-25%2B+%28y%2B7%29%5E2-49=-10\" \r
\n" ); document.write( "\n" ); document.write( "\"%28x-+5%29%5E2+%2B+%28y%2B7%29%5E2=-10+%2B25%2B49\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x+-+5%29%5E2+%2B+%28y%2B7%29%5E2=64\" => center is at (\"5\",\"-7\") and the radius is \"sqrt%2864%29=8\"\r
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