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7 November, 10:09

Which value for x makes the open sentence true?

10 • 8 - 3x + x2 ≥ x3 + x2

A.

6

B.

4

C.

5

D.

7

+2
Answers (1)
  1. 7 November, 10:29
    0
    Answer is B. 4

    10 * 8 - 3 (4) + 4² > 4³ + 4²

    80 - 12 + 16 > 64 + 16

    84 > 80

    All other choices are should have the inequality of < to make the sentence true.
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