What is the derivative of f(x) = 4x^3 + 6x + -8?
- A. 12x^3 + 6
- B. 12x^2
- C. 4x^2 + 6
- D. 12x^2 + 6 ✓
Correct answer
D. 12x^2 + 6
Explanation
Using the power rule, the derivative of 4x^3 is 12x^2, the derivative of 6x is 6, and the derivative of the constant -8 is 0. So f'(x) = 12x^2 + 6.
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