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Create a function with roots x = 3 and x = 2 and x = -3

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That would be
f(x) = (x - 2)(x - 3)(x + 3)

expanded this is f(x) = (x - 2)(x^2 - 9)
= x^3 - 2x^2 - 9x + 18
User Tomislav
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