document.write( "Question 331825: the three roots of x3+2x2-x-2=0 \n" ); document.write( "

Algebra.Com's Answer #237842 by nerdybill(7384) $\"\"$ $\"About$

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$\"x%5E3%2B2x%5E2-x-2=0\"$
\n" ); document.write( "Group terms:
\n" ); document.write( " $\"%28x%5E3%2B2x%5E2%29-%28x%2B2%29+=+0\"$
\n" ); document.write( "Factor:
\n" ); document.write( " $\"x%5E2%28x%2B2%29-%28x%2B2%29+=+0\"$
\n" ); document.write( " $\"%28x%2B2%29%28x%5E2-1%29+=+0\"$
\n" ); document.write( " $\"%28x%2B2%29%28x-1%29%28x%2B1%29+=+0\"$
\n" ); document.write( ".
\n" ); document.write( "Roots are:
\n" ); document.write( "x ={-2, -1, 1} \n" ); document.write( "

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