SOLUTION: i need help with my math bigg time! ok i believe that it is called lesson 10-5 factoring to solve quadratic equations. i need very detailed instructions on how to do this thank you

Question 37506: i need help with my math bigg time! ok i believe that it is called lesson 10-5 factoring to solve quadratic equations. i need very detailed instructions on how to do this thank you.
Prentice Hall Mathmatica Algebre One. Chapter 10 lesson 5
Amanda
Answer by lyra(94) (Show Source): You can put this solution on YOUR website!
It would be easier if you had provided and example, but here you go:

Factoring:

In this case, we want the first terms (x and w) to be . We want the multiplication of the outside terms (x and z) plus the inside terms (-y and w) to be -x. Finally, we want the last terms (-y and z) to be -2. A good way to remember this is F O I L = Firsts Outsides Insides Lasts

So in this case:

*Because we need
To get -1 we could have:
*Because outsides (x and 1)=x + insides (-2 and x)=-2x+x=-1x=-x so that works.
Now to check, we FOIL:

*This is correct!!!
You can also solve equations like this by the quadratic formula. If you have any more questions feel free to contact me!
Smiles,
lyra

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