Calculus Examples

${(4 x^{2} - 3)}^{2} {(x + 5)}^{3}$

Step 1

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = {(4 x^{2} - 3)}^{2}$ and $g (x) = {(x + 5)}^{3}$ .

${(4 x^{2} - 3)}^{2} \frac{d}{d x} [{(x + 5)}^{3}] + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 2

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{3}$ and $g (x) = x + 5$ .

Tap for more steps...

Step 2.1

To apply the Chain Rule, set $u_{1}$ as $x + 5$ .

${(4 x^{2} - 3)}^{2} (\frac{d}{d u_{1}} [{u_{1}}^{3}] \frac{d}{d x} [x + 5]) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 2.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{1}} [{u_{1}}^{n}]$ is $n {u_{1}}^{n - 1}$ where $n = 3$ .

${(4 x^{2} - 3)}^{2} (3 {u_{1}}^{2} \frac{d}{d x} [x + 5]) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 2.3

Replace all occurrences of $u_{1}$ with $x + 5$ .

${(4 x^{2} - 3)}^{2} (3 {(x + 5)}^{2} \frac{d}{d x} [x + 5]) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3

Differentiate.

Tap for more steps...

Step 3.1

Move $3$ to the left of ${(4 x^{2} - 3)}^{2}$ .

$3 \cdot {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} \frac{d}{d x} [x + 5] + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3.2

By the Sum Rule, the derivative of $x + 5$ with respect to $x$ is $\frac{d}{d x} [x] + \frac{d}{d x} [5]$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} (\frac{d}{d x} [x] + \frac{d}{d x} [5]) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} (1 + \frac{d}{d x} [5]) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3.4

Since $5$ is constant with respect to $x$ , the derivative of $5$ with respect to $x$ is $0$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} (1 + 0) + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3.5

Simplify the expression.

Tap for more steps...

Step 3.5.1

Add $1$ and $0$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} \cdot 1 + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 3.5.2

Multiply $3$ by $1$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + {(x + 5)}^{3} \frac{d}{d x} [{(4 x^{2} - 3)}^{2}]$

Step 4

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{2}$ and $g (x) = 4 x^{2} - 3$ .

Tap for more steps...

Step 4.1

To apply the Chain Rule, set $u_{2}$ as $4 x^{2} - 3$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + {(x + 5)}^{3} (\frac{d}{d u_{2}} [{u_{2}}^{2}] \frac{d}{d x} [4 x^{2} - 3])$

Step 4.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{2}} [{u_{2}}^{n}]$ is $n {u_{2}}^{n - 1}$ where $n = 2$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + {(x + 5)}^{3} (2 u_{2} \frac{d}{d x} [4 x^{2} - 3])$

Step 4.3

Replace all occurrences of $u_{2}$ with $4 x^{2} - 3$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + {(x + 5)}^{3} (2 (4 x^{2} - 3) \frac{d}{d x} [4 x^{2} - 3])$

Step 5

Differentiate.

Tap for more steps...

Step 5.1

Move $2$ to the left of ${(x + 5)}^{3}$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 \cdot {(x + 5)}^{3} (4 x^{2} - 3) \frac{d}{d x} [4 x^{2} - 3]$

Step 5.2

By the Sum Rule, the derivative of $4 x^{2} - 3$ with respect to $x$ is $\frac{d}{d x} [4 x^{2}] + \frac{d}{d x} [- 3]$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (\frac{d}{d x} [4 x^{2}] + \frac{d}{d x} [- 3])$

Step 5.3

Since $4$ is constant with respect to $x$ , the derivative of $4 x^{2}$ with respect to $x$ is $4 \frac{d}{d x} [x^{2}]$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (4 \frac{d}{d x} [x^{2}] + \frac{d}{d x} [- 3])$

Step 5.4

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 2$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (4 (2 x) + \frac{d}{d x} [- 3])$

Step 5.5

Multiply $2$ by $4$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (8 x + \frac{d}{d x} [- 3])$

Step 5.6

Since $- 3$ is constant with respect to $x$ , the derivative of $- 3$ with respect to $x$ is $0$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (8 x + 0)$

Step 5.7

Simplify the expression.

Tap for more steps...

Step 5.7.1

Add $8 x$ and $0$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 2 {(x + 5)}^{3} (4 x^{2} - 3) (8 x)$

Step 5.7.2

Multiply $8$ by $2$ .

$3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 16 {(x + 5)}^{3} (4 x^{2} - 3) x$

Step 6

Simplify.

Tap for more steps...

Step 6.1

Factor $(4 x^{2} - 3) {(x + 5)}^{2}$ out of $3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2} + 16 {(x + 5)}^{3} (4 x^{2} - 3) x$ .

Tap for more steps...

Step 6.1.1

Factor $(4 x^{2} - 3) {(x + 5)}^{2}$ out of $3 {(4 x^{2} - 3)}^{2} {(x + 5)}^{2}$ .

$(4 x^{2} - 3) {(x + 5)}^{2} (3 (4 x^{2} - 3)) + 16 {(x + 5)}^{3} (4 x^{2} - 3) x$

Step 6.1.2

Factor $(4 x^{2} - 3) {(x + 5)}^{2}$ out of $16 {(x + 5)}^{3} (4 x^{2} - 3) x$ .

$(4 x^{2} - 3) {(x + 5)}^{2} (3 (4 x^{2} - 3)) + (4 x^{2} - 3) {(x + 5)}^{2} (16 (x + 5) x)$

Step 6.1.3

Factor $(4 x^{2} - 3) {(x + 5)}^{2}$ out of $(4 x^{2} - 3) {(x + 5)}^{2} (3 (4 x^{2} - 3)) + (4 x^{2} - 3) {(x + 5)}^{2} (16 (x + 5) x)$ .

$(4 x^{2} - 3) {(x + 5)}^{2} (3 (4 x^{2} - 3) + 16 (x + 5) x)$

Step 6.2

Reorder the factors of $(4 x^{2} - 3) {(x + 5)}^{2} (3 (4 x^{2} - 3) + 16 (x + 5) x)$ .

${(x + 5)}^{2} (3 (4 x^{2} - 3) + 16 (x + 5) x) (4 x^{2} - 3)$