document.write( "Question 151903: how can i factorize this sum x^3-x^2+ax+x-a-1 ? please help me thanks \n" ); document.write( "
Algebra.Com's Answer #111656 by orca(409)\"\" \"About 
You can put this solution on YOUR website!
First, we need to re-group the terms.
\n" ); document.write( "x^3-x^2+ax+x-a-1
\n" ); document.write( "= (x^3 - x^2) + (ax - a) + (x - 1)
\n" ); document.write( "= x^2(x - 1) + a(x - 1) + (x - 1)
\n" ); document.write( "= (x - 1)(x^2 + a + 1)\r
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