The function f is given in three equivalent forms. Which form most quickly reveals the vertex?
Choose 1
A
f(x) = -3(x + 1)(x - 5)
B
f(x) = -32? + 12x + 15
f(x) = -3(x - 2)2 +27
What is the vertex?

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

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