Find the derivatives of the function y = 2×2(2x – 1) at the point x…

Find the derivatives of the function y = 2x2(2x – 1) at the point x = -1
  • A.
    18
  • B.
    16
  • C.
    -4
  • D.
    -6
Correct Answer: Option B
Explanation

y = 2x2(2x – 1)
y = 4x3 – 2x2
dy/dx = 12x2 – 4x
at x = -1
dy/dx = 12(-1)2 – 4(-1)
= 12 + 4
= 16

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