document.write( "Question 800930: Solve the equation by completing the square: (k-1)(k+7)=9 \n" ); document.write( "
Algebra.Com's Answer #483353 by mananth(16946)\"\" \"About 
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(k-1)(k+7)=9\r
\n" ); document.write( "\n" ); document.write( "\"k%5E2%2B6x-7=9\"\r
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\n" ); document.write( "\n" ); document.write( "\"k%5E2%2B6x=9%2B7\"\r
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\n" ); document.write( "\n" ); document.write( "\"k%5E2%2B6x%2B9=9%2B7%2B9\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28k%2B3%29%5E2=25\"\r
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\n" ); document.write( "\n" ); document.write( "take the square root\r
\n" ); document.write( "\n" ); document.write( "(x+3)=+/- 5\r
\n" ); document.write( "\n" ); document.write( "x=-3+5=2\r
\n" ); document.write( "\n" ); document.write( "OR
\n" ); document.write( "x=-3-5=-8\r
\n" ); document.write( "\n" ); document.write( "x=2OR -8
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