Calculus Examples

$y = \frac{x}{\sqrt{4 - x^{2}}} - \arcsin (\frac{x}{2})$

Step 1

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

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

Step 2

Evaluate $\frac{d}{d x} [\frac{x}{\sqrt{4 - x^{2}}}]$ .

Tap for more steps...

Step 2.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{4 - x^{2}}$ as ${(4 - x^{2})}^{\frac{1}{2}}$ .

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

Step 2.2

Differentiate using the Quotient Rule which states that $\frac{d}{d x} [\frac{f (x)}{g (x)}]$ is $\frac{g (x) \frac{d}{d x} [f (x)] - f (x) \frac{d}{d x} [g (x)]}{{g (x)}^{2}}$ where $f (x) = x$ and $g (x) = {(4 - x^{2})}^{\frac{1}{2}}$ .

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

Step 2.3

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

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

Step 2.4

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{\frac{1}{2}}$ and $g (x) = 4 - x^{2}$ .

Tap for more steps...

Step 2.4.1

To apply the Chain Rule, set $u_{1}$ as $4 - x^{2}$ .

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

Step 2.4.2

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

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

Step 2.4.3

Replace all occurrences of $u_{1}$ with $4 - x^{2}$ .

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

Step 2.5

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

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

Step 2.6

Since $4$ is constant with respect to $x$ , the derivative of $4$ with respect to $x$ is $0$ .

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

Step 2.7

Since $- 1$ is constant with respect to $x$ , the derivative of $- x^{2}$ with respect to $x$ is $- \frac{d}{d x} [x^{2}]$ .

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

Step 2.8

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

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

Step 2.9

Multiply ${(4 - x^{2})}^{\frac{1}{2}}$ by $1$ .

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

Step 2.10

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 2.11

Combine $- 1$ and $\frac{2}{2}$ .

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

Step 2.12

Combine the numerators over the common denominator.

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

Step 2.13

Simplify the numerator.

Tap for more steps...

Step 2.13.1

Multiply $- 1$ by $2$ .

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

Step 2.13.2

Subtract $2$ from $1$ .

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

Step 2.14

Move the negative in front of the fraction.

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

Step 2.15

Multiply $2$ by $- 1$ .

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

Step 2.16

Subtract $2 x$ from $0$ .

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

Step 2.17

Combine $\frac{1}{2}$ and ${(4 - x^{2})}^{- \frac{1}{2}}$ .

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

Step 2.18

Combine $- 2$ and $\frac{{(4 - x^{2})}^{- \frac{1}{2}}}{2}$ .

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

Step 2.19

Combine $\frac{- 2 {(4 - x^{2})}^{- \frac{1}{2}}}{2}$ and $x$ .

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

Step 2.20

Move ${(4 - x^{2})}^{- \frac{1}{2}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

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

Step 2.21

Factor $2$ out of $- 2 x$ .

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

Step 2.22

Cancel the common factors.

Tap for more steps...

Step 2.22.1

Factor $2$ out of $2 {(4 - x^{2})}^{\frac{1}{2}}$ .

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

Step 2.22.2

Cancel the common factor.

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

Step 2.22.3

Rewrite the expression.

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

Step 2.23

Move the negative in front of the fraction.

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

Step 2.24

Multiply $- 1$ by $- 1$ .

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

Step 2.25

Multiply $x$ by $1$ .

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

Step 2.26

Combine $x$ and $\frac{x}{{(4 - x^{2})}^{\frac{1}{2}}}$ .

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

Step 2.27

Raise $x$ to the power of $1$ .

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

Step 2.28

Raise $x$ to the power of $1$ .

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

Step 2.29

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Step 2.30

Add $1$ and $1$ .

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

Step 2.31

To write ${(4 - x^{2})}^{\frac{1}{2}}$ as a fraction with a common denominator, multiply by $\frac{{(4 - x^{2})}^{\frac{1}{2}}}{{(4 - x^{2})}^{\frac{1}{2}}}$ .

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

Step 2.32

Combine the numerators over the common denominator.

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

Step 2.33

Multiply ${(4 - x^{2})}^{\frac{1}{2}}$ by ${(4 - x^{2})}^{\frac{1}{2}}$ by adding the exponents.

Tap for more steps...

Step 2.33.1

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Step 2.33.2

Combine the numerators over the common denominator.

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

Step 2.33.3

Add $1$ and $1$ .

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

Step 2.33.4

Divide $2$ by $2$ .

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

Step 2.34

Simplify ${(4 - x^{2})}^{1}$ .

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

Step 2.35

Add $- x^{2}$ and $x^{2}$ .

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

Step 2.36

Add $4$ and $0$ .

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

Step 2.37

Multiply the exponents in ${({(4 - x^{2})}^{\frac{1}{2}})}^{2}$ .

Tap for more steps...

Step 2.37.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

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

Step 2.37.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 2.37.2.1

Cancel the common factor.

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

Step 2.37.2.2

Rewrite the expression.

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

Step 2.38

Simplify.

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

Step 2.39

Rewrite $\frac{\frac{4}{{(4 - x^{2})}^{\frac{1}{2}}}}{4 - x^{2}}$ as a product.

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

Step 2.40

Multiply $\frac{4}{{(4 - x^{2})}^{\frac{1}{2}}}$ by $\frac{1}{4 - x^{2}}$ .

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

Step 2.41

Multiply ${(4 - x^{2})}^{\frac{1}{2}}$ by $4 - x^{2}$ by adding the exponents.

Tap for more steps...

Step 2.41.1

Multiply ${(4 - x^{2})}^{\frac{1}{2}}$ by $4 - x^{2}$ .

Tap for more steps...

Step 2.41.1.1

Raise $4 - x^{2}$ to the power of $1$ .

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

Step 2.41.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Step 2.41.2

Write $1$ as a fraction with a common denominator.

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

Step 2.41.3

Combine the numerators over the common denominator.

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

Step 2.41.4

Add $1$ and $2$ .

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

Step 3

Evaluate $\frac{d}{d x} [- \arcsin (\frac{x}{2})]$ .

Tap for more steps...

Step 3.1

Since $- 1$ is constant with respect to $x$ , the derivative of $- \arcsin (\frac{x}{2})$ with respect to $x$ is $- \frac{d}{d x} [\arcsin (\frac{x}{2})]$ .

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

Step 3.2

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

Tap for more steps...

Step 3.2.1

To apply the Chain Rule, set $u_{2}$ as $\frac{x}{2}$ .

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

Step 3.2.2

The derivative of $\arcsin (u_{2})$ with respect to $u_{2}$ is $\frac{1}{\sqrt{1 - {u_{2}}^{2}}}$ .

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

Step 3.2.3

Replace all occurrences of $u_{2}$ with $\frac{x}{2}$ .

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

Step 3.3

Since $\frac{1}{2}$ is constant with respect to $x$ , the derivative of $\frac{x}{2}$ with respect to $x$ is $\frac{1}{2} \frac{d}{d x} [x]$ .

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

Step 3.4

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

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - (\frac{1}{\sqrt{1 - {(\frac{x}{2})}^{2}}} (\frac{1}{2} \cdot 1))$

Step 3.5

Multiply $\frac{1}{2}$ by $1$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - (\frac{1}{\sqrt{1 - {(\frac{x}{2})}^{2}}} \cdot \frac{1}{2})$

Step 3.6

Multiply $\frac{1}{\sqrt{1 - {(\frac{x}{2})}^{2}}}$ by $\frac{1}{2}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{\sqrt{1 - {(\frac{x}{2})}^{2}} \cdot 2}$

Step 3.7

Move $2$ to the left of $\sqrt{1 - {(\frac{x}{2})}^{2}}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{1 - {(\frac{x}{2})}^{2}}}$

Step 4

Simplify.

Tap for more steps...

Step 4.1

Apply the product rule to $\frac{x}{2}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{1 - \frac{x^{2}}{2^{2}}}}$

Step 4.2

Raise $2$ to the power of $2$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{1 - \frac{x^{2}}{4}}}$

Step 4.3

Simplify each term.

Tap for more steps...

Step 4.3.1

Simplify the denominator.

Tap for more steps...

Step 4.3.1.1

Write $1$ as a fraction with a common denominator.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{4}{4} - \frac{x^{2}}{4}}}$

Step 4.3.1.2

Combine the numerators over the common denominator.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{4 - x^{2}}{4}}}$

Step 4.3.1.3

Rewrite $\frac{4 - x^{2}}{4}$ in a factored form.

Tap for more steps...

Step 4.3.1.3.1

Rewrite $4$ as $2^{2}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{2^{2} - x^{2}}{4}}}$

Step 4.3.1.3.2

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 2$ and $b = x$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{(2 + x) (2 - x)}{4}}}$

Step 4.3.1.4

Rewrite $\frac{(2 + x) (2 - x)}{4}$ as ${(\frac{1}{2})}^{2} ((2 + x) (2 - x))$ .

Tap for more steps...

Step 4.3.1.4.1

Factor the perfect power $1^{2}$ out of $(2 + x) (2 - x)$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{1^{2} ((2 + x) (2 - x))}{4}}}$

Step 4.3.1.4.2

Factor the perfect power $2^{2}$ out of $4$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{\frac{1^{2} ((2 + x) (2 - x))}{2^{2} \cdot 1}}}$

Step 4.3.1.4.3

Rearrange the fraction $\frac{1^{2} ((2 + x) (2 - x))}{2^{2} \cdot 1}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \sqrt{{(\frac{1}{2})}^{2} ((2 + x) (2 - x))}}$

Step 4.3.1.5

Pull terms out from under the radical.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 (\frac{1}{2} \sqrt{(2 + x) (2 - x)})}$

Step 4.3.1.6

Combine $\frac{1}{2}$ and $\sqrt{(2 + x) (2 - x)}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{2 \frac{\sqrt{(2 + x) (2 - x)}}{2}}$

Step 4.3.2

Combine $2$ and $\frac{\sqrt{(2 + x) (2 - x)}}{2}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{\frac{2 \sqrt{(2 + x) (2 - x)}}{2}}$

Step 4.3.3

Reduce the expression by cancelling the common factors.

Tap for more steps...

Step 4.3.3.1

Reduce the expression $\frac{2 \sqrt{(2 + x) (2 - x)}}{2}$ by cancelling the common factors.

Tap for more steps...

Step 4.3.3.1.1

Cancel the common factor.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{\frac{2 \sqrt{(2 + x) (2 - x)}}{2}}$

Step 4.3.3.1.2

Rewrite the expression.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{\frac{\sqrt{(2 + x) (2 - x)}}{1}}$

Step 4.3.3.2

Divide $\sqrt{(2 + x) (2 - x)}$ by $1$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{1}{\sqrt{(2 + x) (2 - x)}}$

Step 4.3.4

Multiply $\frac{1}{\sqrt{(2 + x) (2 - x)}}$ by $\frac{\sqrt{(2 + x) (2 - x)}}{\sqrt{(2 + x) (2 - x)}}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - (\frac{1}{\sqrt{(2 + x) (2 - x)}} \cdot \frac{\sqrt{(2 + x) (2 - x)}}{\sqrt{(2 + x) (2 - x)}})$

Step 4.3.5

Combine and simplify the denominator.

Tap for more steps...

Step 4.3.5.1

Multiply $\frac{1}{\sqrt{(2 + x) (2 - x)}}$ by $\frac{\sqrt{(2 + x) (2 - x)}}{\sqrt{(2 + x) (2 - x)}}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{\sqrt{(2 + x) (2 - x)} \sqrt{(2 + x) (2 - x)}}$

Step 4.3.5.2

Raise $\sqrt{(2 + x) (2 - x)}$ to the power of $1$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{\sqrt{(2 + x) (2 - x)}}^{1} \sqrt{(2 + x) (2 - x)}}$

Step 4.3.5.3

Raise $\sqrt{(2 + x) (2 - x)}$ to the power of $1$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{\sqrt{(2 + x) (2 - x)}}^{1} {\sqrt{(2 + x) (2 - x)}}^{1}}$

Step 4.3.5.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{\sqrt{(2 + x) (2 - x)}}^{1 + 1}}$

Step 4.3.5.5

Add $1$ and $1$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{\sqrt{(2 + x) (2 - x)}}^{2}}$

Step 4.3.5.6

Rewrite ${\sqrt{(2 + x) (2 - x)}}^{2}$ as $(2 + x) (2 - x)$ .

Tap for more steps...

Step 4.3.5.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{(2 + x) (2 - x)}$ as ${((2 + x) (2 - x))}^{\frac{1}{2}}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{({((2 + x) (2 - x))}^{\frac{1}{2}})}^{2}}$

Step 4.3.5.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{((2 + x) (2 - x))}^{\frac{1}{2} \cdot 2}}$

Step 4.3.5.6.3

Combine $\frac{1}{2}$ and $2$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{((2 + x) (2 - x))}^{\frac{2}{2}}}$

Step 4.3.5.6.4

Cancel the common factor of $2$ .

Tap for more steps...

Step 4.3.5.6.4.1

Cancel the common factor.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{((2 + x) (2 - x))}^{\frac{2}{2}}}$

Step 4.3.5.6.4.2

Rewrite the expression.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{{((2 + x) (2 - x))}^{1}}$

Step 4.3.5.6.5

Simplify.

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} - \frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)}$

Step 4.4

To write $\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}}$ as a fraction with a common denominator, multiply by $\frac{(2 + x) (2 - x)}{(2 + x) (2 - x)}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} \cdot \frac{(2 + x) (2 - x)}{(2 + x) (2 - x)} - \frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)}$

Step 4.5

To write $- \frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)}$ as a fraction with a common denominator, multiply by $\frac{{(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}}}$ .

$\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}} \cdot \frac{(2 + x) (2 - x)}{(2 + x) (2 - x)} - \frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)} \cdot \frac{{(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}}}$

Step 4.6

Write each expression with a common denominator of $(2 + x) (2 - x) {(4 - x^{2})}^{\frac{3}{2}}$ , by multiplying each by an appropriate factor of $1$ .

Tap for more steps...

Step 4.6.1

Multiply $\frac{4}{{(4 - x^{2})}^{\frac{3}{2}}}$ by $\frac{(2 + x) (2 - x)}{(2 + x) (2 - x)}$ .

$\frac{4 ((2 + x) (2 - x))}{{(4 - x^{2})}^{\frac{3}{2}} ((2 + x) (2 - x))} - \frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)} \cdot \frac{{(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}}}$

Step 4.6.2

Multiply $\frac{\sqrt{(2 + x) (2 - x)}}{(2 + x) (2 - x)}$ by $\frac{{(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}}}$ .

$\frac{4 ((2 + x) (2 - x))}{{(4 - x^{2})}^{\frac{3}{2}} ((2 + x) (2 - x))} - \frac{\sqrt{(2 + x) (2 - x)} {(4 - x^{2})}^{\frac{3}{2}}}{(2 + x) (2 - x) {(4 - x^{2})}^{\frac{3}{2}}}$

Step 4.6.3

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

$\frac{4 ((2 + x) (2 - x))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)} - \frac{\sqrt{(2 + x) (2 - x)} {(4 - x^{2})}^{\frac{3}{2}}}{(2 + x) (2 - x) {(4 - x^{2})}^{\frac{3}{2}}}$

Step 4.6.4

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

$\frac{4 ((2 + x) (2 - x))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)} - \frac{\sqrt{(2 + x) (2 - x)} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.7

Combine the numerators over the common denominator.

$\frac{4 ((2 + x) (2 - x)) - \sqrt{(2 + x) (2 - x)} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8

Simplify the numerator.

Tap for more steps...

Step 4.8.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{(2 + x) (2 - x)}$ as ${((2 + x) (2 - x))}^{\frac{1}{2}}$ .

$\frac{4 (2 + x) (2 - x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.2

Apply the distributive property.

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

Step 4.8.3

Multiply $4$ by $2$ .

$\frac{(8 + 4 x) (2 - x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.4

Expand $(8 + 4 x) (2 - x)$ using the FOIL Method.

Tap for more steps...

Step 4.8.4.1

Apply the distributive property.

$\frac{8 (2 - x) + 4 x (2 - x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.4.2

Apply the distributive property.

$\frac{8 \cdot 2 + 8 (- x) + 4 x (2 - x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.4.3

Apply the distributive property.

$\frac{8 \cdot 2 + 8 (- x) + 4 x \cdot 2 + 4 x (- x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5

Simplify and combine like terms.

Tap for more steps...

Step 4.8.5.1

Simplify each term.

Tap for more steps...

Step 4.8.5.1.1

Multiply $8$ by $2$ .

$\frac{16 + 8 (- x) + 4 x \cdot 2 + 4 x (- x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.2

Multiply $- 1$ by $8$ .

$\frac{16 - 8 x + 4 x \cdot 2 + 4 x (- x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.3

Multiply $2$ by $4$ .

$\frac{16 - 8 x + 8 x + 4 x (- x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.4

Rewrite using the commutative property of multiplication.

$\frac{16 - 8 x + 8 x + 4 \cdot - 1 x \cdot x - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.5

Multiply $x$ by $x$ by adding the exponents.

Tap for more steps...

Step 4.8.5.1.5.1

Move $x$ .

$\frac{16 - 8 x + 8 x + 4 \cdot - 1 (x \cdot x) - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.5.2

Multiply $x$ by $x$ .

$\frac{16 - 8 x + 8 x + 4 \cdot - 1 x^{2} - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.1.6

Multiply $4$ by $- 1$ .

$\frac{16 - 8 x + 8 x - 4 x^{2} - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.2

Add $- 8 x$ and $8 x$ .

$\frac{16 + 0 - 4 x^{2} - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.5.3

Add $16$ and $0$ .

$\frac{16 - 4 x^{2} - {((2 + x) (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.6

Expand $(2 + x) (2 - x)$ using the FOIL Method.

Tap for more steps...

Step 4.8.6.1

Apply the distributive property.

$\frac{16 - 4 x^{2} - {(2 (2 - x) + x (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.6.2

Apply the distributive property.

$\frac{16 - 4 x^{2} - {(2 \cdot 2 + 2 (- x) + x (2 - x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.6.3

Apply the distributive property.

$\frac{16 - 4 x^{2} - {(2 \cdot 2 + 2 (- x) + x \cdot 2 + x (- x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7

Simplify and combine like terms.

Tap for more steps...

Step 4.8.7.1

Simplify each term.

Tap for more steps...

Step 4.8.7.1.1

Multiply $2$ by $2$ .

$\frac{16 - 4 x^{2} - {(4 + 2 (- x) + x \cdot 2 + x (- x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.1.2

Multiply $- 1$ by $2$ .

$\frac{16 - 4 x^{2} - {(4 - 2 x + x \cdot 2 + x (- x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.1.3

Move $2$ to the left of $x$ .

$\frac{16 - 4 x^{2} - {(4 - 2 x + 2 \cdot x + x (- x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.1.4

Rewrite using the commutative property of multiplication.

$\frac{16 - 4 x^{2} - {(4 - 2 x + 2 x - x \cdot x)}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.1.5

Multiply $x$ by $x$ by adding the exponents.

Tap for more steps...

Step 4.8.7.1.5.1

Move $x$ .

$\frac{16 - 4 x^{2} - {(4 - 2 x + 2 x - (x \cdot x))}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.1.5.2

Multiply $x$ by $x$ .

$\frac{16 - 4 x^{2} - {(4 - 2 x + 2 x - x^{2})}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.2

Add $- 2 x$ and $2 x$ .

$\frac{16 - 4 x^{2} - {(4 + 0 - x^{2})}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.7.3

Add $4$ and $0$ .

$\frac{16 - 4 x^{2} - {(4 - x^{2})}^{\frac{1}{2}} {(4 - x^{2})}^{\frac{3}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.8

Multiply ${(4 - x^{2})}^{\frac{1}{2}}$ by ${(4 - x^{2})}^{\frac{3}{2}}$ by adding the exponents.

Tap for more steps...

Step 4.8.8.1

Move ${(4 - x^{2})}^{\frac{3}{2}}$ .

$\frac{16 - 4 x^{2} - ({(4 - x^{2})}^{\frac{3}{2}} {(4 - x^{2})}^{\frac{1}{2}})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.8.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{16 - 4 x^{2} - {(4 - x^{2})}^{\frac{3}{2} + \frac{1}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.8.3

Combine the numerators over the common denominator.

$\frac{16 - 4 x^{2} - {(4 - x^{2})}^{\frac{3 + 1}{2}}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.8.4

Add $3$ and $1$ .

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

Step 4.8.8.5

Divide $4$ by $2$ .

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

Step 4.8.9

Rewrite ${(4 - x^{2})}^{2}$ as $(4 - x^{2}) (4 - x^{2})$ .

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

Step 4.8.10

Expand $(4 - x^{2}) (4 - x^{2})$ using the FOIL Method.

Tap for more steps...

Step 4.8.10.1

Apply the distributive property.

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

Step 4.8.10.2

Apply the distributive property.

$\frac{16 - 4 x^{2} - (4 \cdot 4 + 4 (- x^{2}) - x^{2} (4 - x^{2}))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.10.3

Apply the distributive property.

$\frac{16 - 4 x^{2} - (4 \cdot 4 + 4 (- x^{2}) - x^{2} \cdot 4 - x^{2} (- x^{2}))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11

Simplify and combine like terms.

Tap for more steps...

Step 4.8.11.1

Simplify each term.

Tap for more steps...

Step 4.8.11.1.1

Multiply $4$ by $4$ .

$\frac{16 - 4 x^{2} - (16 + 4 (- x^{2}) - x^{2} \cdot 4 - x^{2} (- x^{2}))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.2

Multiply $- 1$ by $4$ .

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - x^{2} \cdot 4 - x^{2} (- x^{2}))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.3

Multiply $4$ by $- 1$ .

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

Step 4.8.11.1.4

Rewrite using the commutative property of multiplication.

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - 4 x^{2} - 1 \cdot - 1 x^{2} x^{2})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.5

Multiply $x^{2}$ by $x^{2}$ by adding the exponents.

Tap for more steps...

Step 4.8.11.1.5.1

Move $x^{2}$ .

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - 4 x^{2} - 1 \cdot - 1 (x^{2} x^{2}))}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - 4 x^{2} - 1 \cdot - 1 x^{2 + 2})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.5.3

Add $2$ and $2$ .

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - 4 x^{2} - 1 \cdot - 1 x^{4})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.6

Multiply $- 1$ by $- 1$ .

$\frac{16 - 4 x^{2} - (16 - 4 x^{2} - 4 x^{2} + 1 x^{4})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.11.1.7

Multiply $x^{4}$ by $1$ .

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

Step 4.8.11.2

Subtract $4 x^{2}$ from $- 4 x^{2}$ .

$\frac{16 - 4 x^{2} - (16 - 8 x^{2} + x^{4})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.12

Apply the distributive property.

$\frac{16 - 4 x^{2} - 1 \cdot 16 - (- 8 x^{2}) - x^{4}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.13

Simplify.

Tap for more steps...

Step 4.8.13.1

Multiply $- 1$ by $16$ .

$\frac{16 - 4 x^{2} - 16 - (- 8 x^{2}) - x^{4}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.13.2

Multiply $- 8$ by $- 1$ .

$\frac{16 - 4 x^{2} - 16 + 8 x^{2} - x^{4}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.14

Subtract $16$ from $16$ .

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

Step 4.8.15

Add $- 4 x^{2}$ and $0$ .

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

Step 4.8.16

Add $- 4 x^{2}$ and $8 x^{2}$ .

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

Step 4.8.17

Rewrite $4 x^{2} - x^{4}$ in a factored form.

Tap for more steps...

Step 4.8.17.1

Factor $x^{2}$ out of $4 x^{2} - x^{4}$ .

Tap for more steps...

Step 4.8.17.1.1

Factor $x^{2}$ out of $4 x^{2}$ .

$\frac{x^{2} \cdot 4 - x^{4}}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.17.1.2

Factor $x^{2}$ out of $- x^{4}$ .

$\frac{x^{2} \cdot 4 + x^{2} (- x^{2})}{{(4 - x^{2})}^{\frac{3}{2}} (2 + x) (2 - x)}$

Step 4.8.17.1.3

Factor $x^{2}$ out of $x^{2} \cdot 4 + x^{2} (- x^{2})$ .

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

Step 4.8.17.2

Rewrite $4$ as $2^{2}$ .

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

Step 4.8.17.3

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 2$ and $b = x$ .

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

Step 4.9

Cancel the common factor.

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

Step 4.10

Rewrite the expression.

$\frac{x^{2} (2 - x)}{{(4 - x^{2})}^{\frac{3}{2}} (2 - x)}$

Step 4.11

Cancel the common factor.

$\frac{x^{2} (2 - x)}{{(4 - x^{2})}^{\frac{3}{2}} (2 - x)}$

Step 4.12

Rewrite the expression.

$\frac{x^{2}}{{(4 - x^{2})}^{\frac{3}{2}}}$