document.write( "Question 149340: x^3+x^2-x-1 \n" ); document.write( "
Algebra.Com's Answer #109560 by edjones(8007)\"\" \"About 
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x^3+x^2-x-1
\n" ); document.write( "=x^2(x+1)-(x+1)
\n" ); document.write( "=(x^2-1)(x+1) Factoring by grouping.
\n" ); document.write( "=(x+1)^2(x-1)
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