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Aptitude | Algebra | Question 3

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  • Difficulty Level : Basic
  • Last Updated : 13 Oct, 2021
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For any real number x the maximum value of 4−6x−x2 is at x=
(A) 4
(B) 6
(C) -3
(D) 3


Answer: (C)

Explanation: Differentiate and equate to 0

6+2x =0

x=−3

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