Posted by John on Tuesday, November 6, 2007 at 5:31pm.
The first one is OK
[(x^2-3x+2)/(7x-14)]*[(7x+7)/(x^2-1)]
= [(x-2)(x-1)7(x+1)]/[7(x-2)(x-1)(x+1]
= 1
Looks like that is OK too.
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