document.write( "Question 463617: factor
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Algebra.Com's Answer #317590 by lwsshak3(11628)\"\" \"About 
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factor
\n" ); document.write( "1-121x^2
\n" ); document.write( "This is a difference of 2 squares: (a^2-b^2)=(a+b)(a-b)
\n" ); document.write( "1-121x^2=(1+11x)(1-11x)
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