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x = -1: f(x) = 2

x = -4: f(x) = 6

x = -9: f(x) = 12

x = -16: f(x) = 20

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Q: What is the set of values of f of x in Begin function f of x equals negative x plus the square root of negative x end function when x -1 x -4 x -9 and x -16?
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