document.write( "Question 128653: the problem is x^2-X-2= i CAME UP WITH (X+2)(X-1) Why wouldnt this be the right answer.
\n" ); document.write( "Next problem is 2x^2-x-3= I came up with (2x+3)(x-1)
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #94148 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
Let's do your problem working backwards from your answer.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28x%2B2%29%28x-1%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Apply FOIL:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x%5E2-x%2B2x-2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2Bx-2\" which is not the same thing as \"x%5E2-x-2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You did get the numbers correctly, that is the 2 and the 1, but you have the signs reversed. Apply FOIL to \"%28x-2%29%28x%2B1%29\" and see what I mean.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "For the other one, let's check your answer again by applying FOIL:
\n" ); document.write( "\"%282x%2B3%29%28x-1%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"2x%5E2-2x%2B3x-3=2x%5E2%2Bx-3\". Again, you have the same problem. The sign on the \"x%5E1\" term is incorrect. What do you think was wrong this time?
\n" ); document.write( "
\n" ); document.write( "
\n" );