## Random Pre Calc help: (sqrt[x] - sqrt[a]) / (x - a)

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.

### Random Pre Calc help: (sqrt[x] - sqrt[a]) / (x - a)

Rewrite: $\frac{\sqrt{x}\, -\, \sqrt{a}}{x\, -\, a}$

This was on a test and I didn't know the answer, please help. I thought it was 0 but I was wrong.
crunkski

Posts: 1
Joined: Thu Aug 13, 2009 1:51 am

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What were the instructions? What were you supposed to do with this expression? How did you arrive at your solution value of "0"?

Please be complete. Thank you!

stapel_eliz

Posts: 1784
Joined: Mon Dec 08, 2008 4:22 pm

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