Solve r-721*3+6=

$$r - 721 \cdot 3 + 6 =$$

Evaluate

$$r-2157$$

Solution Steps

Multiply 721 and 3 to get 2163.

$$r-2163+6$$

Add -2163 and 6 to get -2157.

$$r-2157$$

Differentiate w.r.t. r

$$1$$

Steps Using Derivative Rule for Sum

Multiply 721 and 3 to get 2163.

$$\frac{\mathrm{d}}{\mathrm{d}r}(r-2163+6)$$

Add -2163 and 6 to get -2157.

$$\frac{\mathrm{d}}{\mathrm{d}r}(r-2157)$$

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}.

$$r^{1-1}$$

Subtract 1 from 1.

$$r^{0}$$

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

$$1$$