(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

So, I'm trying to review on calculus since I haven't done any in a year and I was skimming the web for problems and I found this. It's got me stumped.

Question:

x

---------------------

[sqrt(x-1)-sqrt(x)]

Solution:

[(2-sqrt(2-x))*(sqrt(x)+sqrt(2-x))]

---------------------------------------

2x-2

That was all that was given. I don't even know how to start this. Anything that would help get me started would be appreciated. :)

2. Relevant equations

Above

3. The attempt at a solution

Well, at first I tried multiplying both sides with sqrt(x-1)+sqrt(x) then simplifying it to see if it matches the solution. But nothing. I'm wondering if the question wants me to find the derivative, integral, I really don't know.

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# Calculus Question

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