f(x) = (x-3)(x+2)(x + 4)(x – 1)(2x – 9) has zeros at x = -4, x = -2, x = 1, x = 3, and x = 9/2 What is the sign of f on the inte

Question

f(x) = (x-3)(x+2)(x + 4)(x – 1)(2x – 9) has zeros at x = -4, x = -2, x = 1, x = 3, and
x = 9/2
What is the sign of f on the interval -2 < x < 9/2?
Choose 1 answers
A: f is always positive on the interval.
B: f is always negative on the interval.
C: f is sometimes positive and sometimes negative on the interval.

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RI SƠ 3 years 2021-07-31T06:01:47+00:00 1 Answers 8 views 0

Answers ( )

  1. Ben
    0
    2021-07-31T06:03:17+00:00
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    Answer:F is sometimes positive and sometimes negative on the interval.

    Step-by-step explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )