Question 68318
I do not understand how they got the answer for this problem.
(x+h)^3 
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You know this means: (x+h)*(x+h)*(x+h), right
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First FOIL (x+h)*(x+h) and you should get: x^2 + 2xh + h^2
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Mult that by (x+h), do it the old fashioned way you learn to multiply numbers:
x^2 + 2xh + h^2
.................x + h
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You should get the answer they gave you.