document.write( "Question 270203: 2x^3 + x^2 - 2x - 1 \r
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Algebra.Com's Answer #197976 by palanisamy(496)\"\" \"About 
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2x^3 + x^2 - 2x - 1
\n" ); document.write( "=2x^3 -2x + x^2 - 1
\n" ); document.write( "=2x(x^2-1)+1(x^2-1)
\n" ); document.write( "=(x^2-1)(2x+1)
\n" ); document.write( "=(x+1)(x-1)(2x+1)
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