Solve (2x)3^2

$$(2x) { 3 }^{ 2 }$$

Evaluate

$$18x$$

Solution Steps

Calculate 3 to the power of 2 and get 9.

$$2x\times 9$$

Multiply 2 and 9 to get 18.

$$18x$$

Differentiate w.r.t. x

$$18$$

Steps Using Definition of a Derivative

Calculate 3 to the power of 2 and get 9.

$$\frac{\mathrm{d}}{\mathrm{d}x}(2x\times 9)$$

Multiply 2 and 9 to get 18.

$$\frac{\mathrm{d}}{\mathrm{d}x}(18x)$$

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

$$18x^{1-1}$$

Subtract 1 from 1.

$$18x^{0}$$

For any term t except 0, t^{0}=1.

$$18\times 1$$

For any term t, t\times 1=t and 1t=t.

$$18$$