document.write( "Question 753098: What is the standard form of a circle for the equation X^2+y^2+12x-22y+13=0 ? \n" ); document.write( "

Algebra.Com's Answer #458205 by MathLover1(20850) $\"\"$ $\"About$

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$\"x%5E2%2By%5E2%2B12x-22y%2B13=0+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2%2B12x%29%2B%28y%5E2-22y%29%2B13=0+\"$ ...complete the square\r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2%2B12x%2B__%29-___%2B%28y%5E2-22y%2B____%29-___%2B13=0+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2%2B12x%2B36%29-36%2B%28y%5E2-22y%2B121%29-121%2B13=0+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%2B6%29%5E2%2B%28y-11%29%5E2-121-36%2B13=0+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%2B6%29%5E2%2B%28y-11%29%5E2-144=0+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%2B6%29%5E2%2B%28y-11%29%5E2=144+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%2B6%29%5E2%2B%28y-11%29%5E2=12%5E2+\"$ .......the center is at ( $\"-6\"$ , $\"11\"$ ) and radius $\"r=12\"$ \r
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