Question

timed problem
score: 8/10
$\frac{d}{dx}(4x^3)$
answer
$\frac{4}{3}x^4$
$2x^2$
$x^4$
$12x^2$

Explanation:

Step1: Apply constant multiple rule

$\frac{d}{dx}(4x^3) = 4 \cdot \frac{d}{dx}(x^3)$

Step2: Apply power rule $\frac{d}{dx}(x^n)=nx^{n-1}$

$4 \cdot 3x^{3-1} = 12x^2$

Answer:

$12x^2$