Question 215786
Please help me expand the binomial in the difference quotient and simplify. I was given: f(x+h) - f(x) divided by h. 
the question in concern is f(x)=square root of x
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f(x+h) = sqrt(x+h)
f(x)   = sqrt(x)
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f(x+h)-f(x) = sqrt(x+h)-sqrt(x)
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Finally: [f(x+h)-f(x)]/h
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Cheers,
Stan H.