b(X) = X^2 + 3 find / simplify b(a+h) -b(a) / h I thought I knew how to do this, but the function of X is confusing me since there is no X variable in the Find.
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expand the numerator and combine like terms, then factor ... you should get the in the denominator to divide out
This helps a lot, thank you. I will be a returning customer =P
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