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**Math Final**

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**stormswimmer****Member**- Registered: 2006-01-27
- Posts: 8

I am studying for my Math final and i have trouble with this one type of problem. For Instance

Click on the Image to make it bigger

*Last edited by stormswimmer (2006-05-17 10:05:21)*

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,560

The trick is to give them the same denominator.

How can you turn (w-2) into (w²+w-6) ?

By guesswork I figured that you could multiply by (w+3):

(w-2)(w+3) = w²+3w-2w-6=w²+w-6

So, multiply top and bottom of the first term by (w+3), then combine the terms and simplify

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**liuv****Member**- Registered: 2006-05-14
- Posts: 29

:D

*Last edited by liuv (2006-05-17 12:40:32)*

I'm from Beijing China.

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**krassi_holmz****Real Member**- Registered: 2005-12-02
- Posts: 1,908

I think it's

IPBLE: Increasing Performance By Lowering Expectations.

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