The derivative of $x^3$ with respect to $x$ is:
- $x^2$
- $3x$
- $\dfrac{x^4}{4}$
- $3x^2$
Show answer and solution
Correct answer: D. $3x^2$
Power rule: d/dx(x³) = 3x².
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Correct answer: D. $3x^2$