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kimbroughtanish
kimbroughtanish kimbroughtanish
  • 11-01-2016
  • Mathematics
Answered

Which value for x makes the open sentence true?


10 • 8 – 3x + x2 ≥ x3 + x2


A.

6


B.

4


C.

5


D.

7

Verified Answer :

taskmasters
taskmasters taskmasters
  • 11-01-2016

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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