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