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Derivative Rules: Sum, Difference, Constant Multiple

AP Calculus AB· difficulty 1/5

If f(x)=x3−4x+7f(x) = x^3 - 4x + 7, then f′(2)=f'(2) =

  • A

    1212

  • B

    88

    check_circle
  • C

    −4-4

  • D

    00

Explanation

f′(x)=3x2−4f'(x) = 3x^2 - 4. f′(2)=12−4=8f'(2) = 12 - 4 = 8.

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