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Mathematics 9 Online
OpenStudy (anonymous):

How to prove equation listed in comments?

OpenStudy (anonymous):

\[\frac{\frac{ 1 }{x+h}- \frac{1}{x}}{h} = \frac{-1}{x(x+h)}\]

OpenStudy (cwrw238):

the first step is to covert the top 2 fractions to one fraction |dw:1401730772063:dw|

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