Friday
May 22, 2015

Homework Help: Algebra

Posted by John on Tuesday, November 6, 2007 at 5:31pm.

Checking two problems :
1. x^2-7x+12 / x^2-16 =
(x-3)(x-4) / (x-4)(x+4)
(x-4) cancels out
Answer (x-3)/(x+4)

2. x^2-3x+2/7x-14 divide by x^2-1/7x+7
x^2-3x+2/7x-14 * 7x+7/x^2-1
(x-1)(x-2)7(x+1)/7(x-2)(x-1)(x+1)
To me it looks like everything cancels out, is that possible?

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