Derivative of $$$4 x^{2}$$$

The calculator will find the derivative of $$$4 x^{2}$$$, with steps shown.

Related calculator: Derivative Calculator

Solution

Apply the constant multiple rule $$$\frac{d}{dx} \left(c f{\left(x \right)}\right) = c \frac{d}{dx} \left(f{\left(x \right)}\right)$$$ with $$$c = 4$$$ and $$$f{\left(x \right)} = x^{2}$$$:

$${\color{red}\left(\frac{d}{dx} \left(4 x^{2}\right)\right)} = {\color{red}\left(4 \frac{d}{dx} \left(x^{2}\right)\right)}$$

Apply the power rule $$$\frac{d}{dx} \left(x^{n}\right) = n x^{n - 1}$$$ with $$$n = 2$$$:

$$4 {\color{red}\left(\frac{d}{dx} \left(x^{2}\right)\right)} = 4 {\color{red}\left(2 x\right)}$$

Thus, $$$\frac{d}{dx} \left(4 x^{2}\right) = 8 x$$$.

Answer

$$$\frac{d}{dx} \left(4 x^{2}\right) = 8 x$$$A