Given $f(x) = 3x^2 + x + 4$, find a simplified expression for each of the following: $f(a) = (3a-4)(a+1)$ $f(a-1) = $ $f(a+h) = $ \frac{f(a+h) - f(a)}{h} = $
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$f(a) = 3a^2 + a + 4$ Show more…
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