document.write( "Question 384689: Andrew factored expression 14x^3 - 21x^2 - 7x as 7x(14x^2 - 21x - 7) but when Melissa applied the distribution law and multiplied out 7x(14x - 21x - 7), she got 98x^3 - 147x^2 - 49x; thus, Andrew's solution does not appear to check. Why is that? Help Andrew understand better. Explain reasoning and correctly factor the original expression if possible. If expression is prime, state this. \n" ); document.write( "
Algebra.Com's Answer #272324 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
14x^3 - 21x^2 - 7x
\n" ); document.write( "=7x(2x^2-3x-1)
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