Khushi S.

asked • 02/18/22

lim h -> 0 ((-3 + h)^3 - 9) / h

how is the answer -1 and not zero? what do I do before plugging in the zero so that I would get -1?

1 Expert Answer

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Mark M. answered • 02/18/22

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Expand ((-3 + h)3 - 9 before dividing by h.

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Khushi S.

after I expanded it, I plugged in the h for zero in the denominator. that gave me a different answer. was i supposed to do something else for the denominator?
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02/18/22

Marion J.

Can you check the question again...there appears to be an error in it
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02/18/22

Khushi S.

my bad, it's actually lim h -> 0 ((-3 + h)^2 - 9) / h
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02/19/22

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