Solve -20k+25k

$$- 20 k + 25 k$$

Differentiate w.r.t. k

$$5$$

Steps Using Definition of a Derivative

Combine -20k and 25k to get 5k.

$$\frac{\mathrm{d}}{\mathrm{d}k}(5k)$$

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

$$5k^{1-1}$$

Subtract 1 from 1.

$$5k^{0}$$

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

$$5\times 1$$

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

$$5$$

Evaluate

$$5k$$

Solution Steps

Combine -20k and 25k to get 5k.

$$5k$$