Which of the functions below have exactly two distinct real zeros?
I. f(x) = -x2 + 14x - 45
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Mathematics, 27.01.2022 14:00 nataliemoore1974
Which of the functions below have exactly two distinct real zeros?
I. f(x) = -x2 + 14x - 45
II. f(x) = 4x2 + 4
III. f(x) = 2x2 + 12x + 18
IV. f(x) = 3x2 - 4x - 4
A. I and IV
C. II and III
B. I, II, and III
D. III and IV
Answers: 3
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