Question
If $f(x)=4 x^{2}-5 x-2,$ find$$ \begin{aligned} \frac{f(x+h)-f(x)}{h}, h \neq 0 & \end{aligned} $$
Step 1
We do this by substituting $x+h$ into the function $f(x)$: $$f(x+h) = 4(x+h)^{2}-5(x+h)-2.$$ Show more…
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