SOLUTION: the problem is x^2-X-2= i CAME UP WITH (X+2)(X-1) Why wouldnt this be the right answer. Next problem is 2x^2-x-3= I came up with (2x+3)(x-1)

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

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let's do your problem working backwards from your answer.

Apply FOIL:

which is not the same thing as

You did get the numbers correctly, that is the 2 and the 1, but you have the signs reversed. Apply FOIL to and see what I mean.

For the other one, let's check your answer again by applying FOIL:

. Again, you have the same problem. The sign on the term is incorrect. What do you think was wrong this time?

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