SOLUTION: If f(x)= 2x^2 -3, find [f(x+h)-f(x)]/h

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Question 961780: If f(x)= 2x^2 -3, find [f(x+h)-f(x)]/h
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2 -3, find [f(x+h)-f(x)]/h
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f(x+h) = 2(x+h)^2-3
f(x+h) = 2x^2 + 4hx + 2h^2 - 3
f(x) = 2x^2 - 3
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Subtracting you get::
4hx + 2h^2
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Dividing by h you get:
4x + 2h
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Cheers,
Stan H.
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