suppose f(x) = x^2 + 9x. simplify f(x+h) - f(x) / h
Added by Thomas S.
Step 1
First, we need to find f(x+h): f(x+h) = (x+h)^2 + 9(x+h) = x^2 + 2xh + h^2 + 9x + 9h Show more…
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