document.write( "Question 433517: factor completely
\n" ); document.write( "4r^2 - 121
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Algebra.Com's Answer #300505 by belle3833(46)\"\" \"About 
You can put this solution on YOUR website!
This is a difference of 2 squares:\r
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\n" ); document.write( "\n" ); document.write( "\"4r%5E2-121=%282r%2B11%29%282r-11%29\"\r
\n" ); document.write( "\n" ); document.write( "Hope this helps
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