Solve (4x)(3x)

$$( 4 x ) ( 3 x )$$

Evaluate

$$12x^{2}$$

Solution Steps

Multiply x and x to get x^{2}.

$$4x^{2}\times 3$$

Multiply 4 and 3 to get 12.

$$12x^{2}$$

Differentiate w.r.t. x

$$24x$$

Steps Using Definition of a Derivative

Multiply x and x to get x^{2}.

$$\frac{\mathrm{d}}{\mathrm{d}x}(4x^{2}\times 3)$$

Multiply 4 and 3 to get 12.

$$\frac{\mathrm{d}}{\mathrm{d}x}(12x^{2})$$

The derivative of ax^{n} is nax^{n-1}.

$$2\times 12x^{2-1}$$

Multiply 2 times 12.

$$24x^{2-1}$$

Subtract 1 from 2.

$$24x^{1}$$

For any term t, t^{1}=t.

$$24x$$