a) 49 - r²
b) 10x² - x - 3
c) 2x² - 50 Moderator edit: Rule #8 enforced: http://www.mathhelpforum.com/math-he...hp?do=vsarules
Last edited by mr fantastic; April 25th 2011 at 08:36 PM.
Reason: Re-titled, too many questions.
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What have you tried?
ya i tired dint manage to get the answer
Originally Posted by zeeeebraaaa ya i tired dint manage to get the answer You were actually asked WHAT did you try... If you post what you have done, we can show you where you have gone wrong. We aren't going to do your work for you though.
You'll be using the difference of two squares for 1 and 3
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