What is the derivative of f(x) = 2x^3 + 5x + 1?
- A. 6x^3 + 5
- B. 6x^2 + 5 ✓
- C. 2x^2 + 5
- D. 6x^2
Correct answer
B. 6x^2 + 5
Explanation
Using the power rule, the derivative of 2x^3 is 6x^2, the derivative of 5x is 5, and the derivative of the constant 1 is 0. So f'(x) = 6x^2 + 5.
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