document.write( "Question 1089923: Find the area if the circle given by the equation x^2 +y^2 +6x+2y+6=0 \n" ); document.write( "
Algebra.Com's Answer #704301 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "if the circle given by the equation \"x%5E2+%2By%5E2+%2B6x%2B2y%2B6=0\", first write it in \"%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2\" form and find a radius\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B6x%29+%2B%28y%5E2+%2B2y%29%2B6=0\"...complete square\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B6x%2Bb%5E2%29-b%5E2+%2B%28y%5E2+%2B2y%2Bb%5E2%29-b%5E2%2B6=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B6x%2B3%5E2%29-3%5E2+%2B%28y%5E2+%2B2y%2B1%5E2%29-2%5E2%2B6=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B3%29%5E2-9+%2B%28y%2B1%29%5E2-1%2B6=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B3%29%5E2+%2B%28y%2B3%29%5E2-10%2B6=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B3%29%5E2+%2B%28y%2B3%29%5E2-4=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B3%29%5E2+%2B%28y%2B3%29%5E2=4\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2B3%29%5E2+%2B%28y%2B3%29%5E2=2%5E2\"=> \"r=2\"\r
\n" ); document.write( "\n" ); document.write( "the area is \"A=r%5E2pi\"=>\"A=2%5E2pi\"=>=>\"A=4pi\" approximately \"A=12.56\"\r
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