Solve 2a+4-2+a

$$2 a + 4 - 2 + a$$

Evaluate

$$3a+2$$

Solution Steps

Subtract 2 from 4 to get 2.

$$2a+2+a$$

Combine 2a and a to get 3a.

$$3a+2$$

Differentiate w.r.t. a

$$3$$

Steps Using Derivative Rule for Sum

Subtract 2 from 4 to get 2.

$$\frac{\mathrm{d}}{\mathrm{d}a}(2a+2+a)$$

Combine 2a and a to get 3a.

$$\frac{\mathrm{d}}{\mathrm{d}a}(3a+2)$$

The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax^{n} is nax^{n-1}.

$$3a^{1-1}$$

Subtract 1 from 1.

$$3a^{0}$$

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

$$3\times 1$$

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

$$3$$