document.write( "Question 523148: Please help me solve this question:\r
\n" ); document.write( "\n" ); document.write( "z-5/z-9 - z+1/z+9 + z-81/z^2-81\r
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Algebra.Com's Answer #347227 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "LCD = (z^2-81)\r
\n" ); document.write( "\n" ); document.write( "\"%28%28z-5%29%28z%2B9%29-%28z%2B1%29%28z-9%29%2B%28z-81%29%29%2F%28%28z%2B9%29%28z-9%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28z%5E2%2B4z-45%29-%28z%5E2-8z-9%29%2B%28z-81%29%29%2F%28%28z%2B9%29%28z-9%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28z%5E2%2B4z-45-z%5E2%2B8z%2B9%2Bz-81%29%2F%28%28z%2B9%29%28z-9%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%2813z-117%29%2F%28%28z%2B9%29%28z-9%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%2813%28cross%28z-9%29%29%29%2F%28%28z%2B9%29%28cross%28z-9%29%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"13%2F%28z%2B9%29\"
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