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Old 07-25-2007   #1
mendelssohnviolin
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Default I need help with this algebra problem....T___T?

Factor each expression as a difference of two squares:a^2 - (x+1)^2What's 'a difference of two squares', and how would you use it in this problem?How about the following question?(c-d)^2 - e^2I'm really confused right now, so please help!!!!!!!!Thanks...>.
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Old 07-25-2007   #2
Milo
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with the first, presumably this is really a^2-(x+1)^2=0? then a^2=(x+1)^2taking square rootsa= +or- (x+1)similarly for the second
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Old 07-25-2007   #3
Farshad Gh
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A^2 - B^2 = (A-B)*(A+B)have fun
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