Question 183022: i belive the answer to 1 over 2(x+h) minus 1 over 2x with both being over h is 2h over h is that correct? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! i believe the answer to 1 over 2(x+h) minus 1 over 2x with both being over h is 2h over h is that correct?
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[1/[2(x+h)] - [1/2x]]/[h]
lcd of the numerator is 2x(x+h)
= [x/lcd - (x+h)/lcd] / [h]
= [(x-x-h)/lcd]/ h
= [-h/lcd]/h
= -1/lcd
= -1/[2x(x+h)]
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Cheers,
Stan H.
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