Algebra

[kansas]

I am doing review for Algebra but I am stuck! I need to factor this:

x^2-2x-15

I have the answers but I dont know how to solve it! Answer is (x-5)(x+3)

 

[Mrspi]

I am doing review for Algebra but I am stuck! I need to factor this:

x^2-2x-15

I have the answers but I dont know how to solve it! Answer is (x-5)(x+3)

Here's a good "review" lesson on factoring quadratic expression of this sort (and includes links to more complicated expressions):

http://www.purplemath.com/modules/factquad.htm

Read through the lesson and work through the examples. See if this information helps you with your problem. If you're still having trouble with the problem, please repost and tell us your thoughts, so we have a better idea of what kind of help you need.