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3log3(-5) =

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(x^3 y-2)^2 (x-2y^3)^4 / (x-2y-2)^3...SOLVE If f(x) = -2x^2 + 8x - 4, which of the follwoing is true?
ooption
A. The maximum value of f(x) is -4.
B. The graph of f opens upward.
C. The graph of f has no x-intercept
D. f is not a one to one function.