What is the derivative of f(x) = 8x^3 + 7x + 2?
- A. 8x^2 + 7
- B. 24x^2 + 7 ✓
- C. 24x^2
- D. 24x^3 + 7
Correct answer
B. 24x^2 + 7
Explanation
Using the power rule, the derivative of 8x^3 is 24x^2, the derivative of 7x is 7, and the derivative of the constant 2 is 0. So f'(x) = 24x^2 + 7.
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