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Find the possible numbers of positive and negative real zeros for the function: f (x) = 2x4 - 10x3 + 11x-15x+12 Select the correct

Find the possible numbers of positive and negative real zeros for the function: f (x) = 2x4 - 10x3 + 11x-15x+12 Select the correct answer below: 4, 2, or 0 positive real zeros; 4, 2, or 0 negative real zeros. 4, 2, or 0 positive real zeros; 0 negative real zeros. 0 positive real zeros; 4, 2, or 0 negative real zeros. 0 real zeros.

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