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10 September, 20:19

Find the derivative of f (x) = 12x2 + 8x at x = 9.

a) 256

b) - 243

c) 288

d) 224

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Answers (2)
  1. 10 September, 20:39
    0
    224

    Step-by-step explanation:

    f (x) f ′ (x) f ′ (9) = 12x2+8x=24x+8=224
  2. 10 September, 20:48
    0
    C) 288

    Step-by-step explanation:

    C) 288

    F (x) = 12x2 + 8x

    F (x) = 12*9*2 + 8 (9)

    F (x) = 216 + 72

    F (x) = 288
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