I am studying for my Math final and i have trouble with this one type of problem. For Instance
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Last edited by stormswimmer (2006-05-17 10:05:21)
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
Last edited by liuv (2006-05-17 12:40:32)
I'm from Beijing China.