Basic Math Examples

$(\frac{\sqrt{b}}{a - \sqrt{a b}} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1

Simplify each term.

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Step 1.1

Simplify the denominator.

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Step 1.1.1

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

$(\frac{\sqrt{b}}{a - {(a b)}^{\frac{1}{2}}} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.2

Apply the product rule to $a b$ .

$(\frac{\sqrt{b}}{a - (a^{\frac{1}{2}} b^{\frac{1}{2}})} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.3

Rewrite $a - a^{\frac{1}{2}} b^{\frac{1}{2}}$ in a factored form.

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Step 1.1.3.1

Factor $a^{\frac{1}{2}}$ out of $a - a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

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Step 1.1.3.1.1

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

$(\frac{\sqrt{b}}{a^{1} - a^{\frac{1}{2}} b^{\frac{1}{2}}} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.3.1.2

Factor $a^{\frac{1}{2}}$ out of $a^{1}$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} a^{\frac{1}{2}} - a^{\frac{1}{2}} b^{\frac{1}{2}}} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.3.1.3

Factor $a^{\frac{1}{2}}$ out of $- a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} a^{\frac{1}{2}} + a^{\frac{1}{2}} (- 1 b^{\frac{1}{2}})} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.3.1.4

Factor $a^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} a^{\frac{1}{2}} + a^{\frac{1}{2}} (- 1 b^{\frac{1}{2}})$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - 1 b^{\frac{1}{2}})} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.1.3.2

Rewrite $- 1 b^{\frac{1}{2}}$ as $- b^{\frac{1}{2}}$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{\sqrt{a b} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.2

Simplify the denominator.

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Step 1.2.1

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

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{{(a b)}^{\frac{1}{2}} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.2.2

Apply the product rule to $a b$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{a^{\frac{1}{2}} b^{\frac{1}{2}} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.2.3

Factor $b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} - b$ .

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Step 1.2.3.1

Factor $b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} a^{\frac{1}{2}} - b}) (a \sqrt{b} - b \sqrt{a})$

Step 1.2.3.2

Factor $b^{\frac{1}{2}}$ out of $- b$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} (- b^{\frac{1}{2}})}) (a \sqrt{b} - b \sqrt{a})$

Step 1.2.3.3

Factor $b^{\frac{1}{2}}$ out of $b^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} (- b^{\frac{1}{2}})$ .

$(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}) (a \sqrt{b} - b \sqrt{a})$

Step 2

Expand $(\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}) (a \sqrt{b} - b \sqrt{a})$ using the FOIL Method.

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Step 2.1

Apply the distributive property.

$\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b} - b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b} - b \sqrt{a})$

Step 2.2

Apply the distributive property.

$\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b} - b \sqrt{a})$

Step 2.3

Apply the distributive property.

Step 3

Simplify and combine like terms.

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Step 3.1

Simplify each term.

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Step 3.1.1

Multiply $\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b})$ .

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Step 3.1.1.1

Combine $a$ and $\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a \sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \sqrt{b} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.1.2

Combine $\frac{a \sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ and $\sqrt{b}$ .

$\frac{a \sqrt{b} \sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.1.3

Raise $\sqrt{b}$ to the power of $1$ .

$\frac{a ({\sqrt{b}}^{1} \sqrt{b})}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.1.4

Raise $\sqrt{b}$ to the power of $1$ .

$\frac{a ({\sqrt{b}}^{1} {\sqrt{b}}^{1})}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.1.5

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

$\frac{a {\sqrt{b}}^{1 + 1}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.1.6

Add $1$ and $1$ .

$\frac{a {\sqrt{b}}^{2}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.2

Move $a^{\frac{1}{2}}$ to the numerator using the negative exponent rule $\frac{1}{b^{n}} = b^{- n}$ .

$\frac{a {\sqrt{b}}^{2} a^{- \frac{1}{2}}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3

Multiply $a$ by $a^{- \frac{1}{2}}$ by adding the exponents.

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Step 3.1.3.1

Move $a^{- \frac{1}{2}}$ .

$\frac{a^{- \frac{1}{2}} a {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3.2

Multiply $a^{- \frac{1}{2}}$ by $a$ .

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Step 3.1.3.2.1

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

$\frac{a^{- \frac{1}{2}} a^{1} {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3.2.2

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

$\frac{a^{- \frac{1}{2} + 1} {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3.3

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

$\frac{a^{- \frac{1}{2} + \frac{2}{2}} {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3.4

Combine the numerators over the common denominator.

$\frac{a^{\frac{- 1 + 2}{2}} {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.3.5

Add $- 1$ and $2$ .

$\frac{a^{\frac{1}{2}} {\sqrt{b}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.4

Rewrite ${\sqrt{b}}^{2}$ as $b$ .

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Step 3.1.4.1

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

$\frac{a^{\frac{1}{2}} {(b^{\frac{1}{2}})}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.4.2

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

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2} \cdot 2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.4.3

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

$\frac{a^{\frac{1}{2}} b^{\frac{2}{2}}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.4.4

Cancel the common factor of $2$ .

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Step 3.1.4.4.1

Cancel the common factor.

Step 3.1.4.4.2

Rewrite the expression.

$\frac{a^{\frac{1}{2}} b^{1}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.4.5

Simplify.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} + \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.5

Rewrite using the commutative property of multiplication.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (b \sqrt{a}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.6

Multiply $- \frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (b \sqrt{a})$ .

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Step 3.1.6.1

Combine $b$ and $\frac{\sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \sqrt{a} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.6.2

Combine $\sqrt{a}$ and $\frac{b \sqrt{b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{\sqrt{a} (b \sqrt{b})}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.6.3

Combine using the product rule for radicals.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b}) - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.7

Multiply $- \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (a \sqrt{b})$ .

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Step 3.1.7.1

Combine $a$ and $\frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \sqrt{b} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.7.2

Combine $\sqrt{b}$ and $\frac{a \sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{b} (a \sqrt{a})}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.7.3

Combine using the product rule for radicals.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$

Step 3.1.8

Multiply $- \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (- b \sqrt{a})$ .

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Step 3.1.8.1

Multiply $- 1$ by $- 1$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + 1 \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (b \sqrt{a})$

Step 3.1.8.2

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} (b \sqrt{a})$

Step 3.1.8.3

Combine $b$ and $\frac{\sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b \sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \sqrt{a}$

Step 3.1.8.4

Combine $\frac{b \sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$ and $\sqrt{a}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b \sqrt{a} \sqrt{a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 3.1.8.5

Raise $\sqrt{a}$ to the power of $1$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b ({\sqrt{a}}^{1} \sqrt{a})}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 3.1.8.6

Raise $\sqrt{a}$ to the power of $1$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b ({\sqrt{a}}^{1} {\sqrt{a}}^{1})}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 3.1.8.7

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b {\sqrt{a}}^{1 + 1}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 3.1.8.8

Add $1$ and $1$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b {\sqrt{a}}^{2}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 3.1.9

Move $b^{\frac{1}{2}}$ to the numerator using the negative exponent rule $\frac{1}{b^{n}} = b^{- n}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b {\sqrt{a}}^{2} b^{- \frac{1}{2}}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10

Multiply $b$ by $b^{- \frac{1}{2}}$ by adding the exponents.

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Step 3.1.10.1

Move $b^{- \frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{- \frac{1}{2}} b {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10.2

Multiply $b^{- \frac{1}{2}}$ by $b$ .

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Step 3.1.10.2.1

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{- \frac{1}{2}} b^{1} {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10.2.2

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{- \frac{1}{2} + 1} {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10.3

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{- \frac{1}{2} + \frac{2}{2}} {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10.4

Combine the numerators over the common denominator.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{- 1 + 2}{2}} {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.10.5

Add $- 1$ and $2$ .

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} {\sqrt{a}}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11

Rewrite ${\sqrt{a}}^{2}$ as $a$ .

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Step 3.1.11.1

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} {(a^{\frac{1}{2}})}^{2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11.2

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a^{\frac{1}{2} \cdot 2}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11.3

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a^{\frac{2}{2}}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11.4

Cancel the common factor of $2$ .

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Step 3.1.11.4.1

Cancel the common factor.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a^{\frac{2}{2}}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11.4.2

Rewrite the expression.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a^{1}}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.1.11.5

Simplify.

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.2

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

$\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}} \cdot \frac{a^{\frac{1}{2}}}{a^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.3

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

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Step 3.3.1

Multiply $\frac{a^{\frac{1}{2}} b}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$ by $\frac{a^{\frac{1}{2}}}{a^{\frac{1}{2}}}$ .

$\frac{a^{\frac{1}{2}} b a^{\frac{1}{2}}}{(a^{\frac{1}{2}} - b^{\frac{1}{2}}) a^{\frac{1}{2}}} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.3.2

Reorder the factors of $(a^{\frac{1}{2}} - b^{\frac{1}{2}}) a^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b a^{\frac{1}{2}}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.4

Combine the numerators over the common denominator.

$\frac{a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.5

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

$\frac{a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \cdot \frac{b^{\frac{1}{2}}}{b^{\frac{1}{2}}} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.6

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

$\frac{a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \cdot \frac{b^{\frac{1}{2}}}{b^{\frac{1}{2}}} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \cdot \frac{a^{\frac{1}{2}}}{a^{\frac{1}{2}}} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.7

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

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Step 3.7.1

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

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) b^{\frac{1}{2}}} - \frac{a \sqrt{b a}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} \cdot \frac{a^{\frac{1}{2}}}{a^{\frac{1}{2}}} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.7.2

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

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}}}{a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) b^{\frac{1}{2}}} - \frac{a \sqrt{b a} a^{\frac{1}{2}}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) a^{\frac{1}{2}}} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.7.3

Reorder the factors of $a^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) b^{\frac{1}{2}}$ .

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a} a^{\frac{1}{2}}}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) a^{\frac{1}{2}}} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.7.4

Reorder the factors of $b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}}) a^{\frac{1}{2}}$ .

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} - \frac{a \sqrt{b a} a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.8

Combine the numerators over the common denominator.

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}} - a \sqrt{b a} a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})} + \frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 3.9

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

Step 3.10

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

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Step 3.10.1

Multiply $\frac{b^{\frac{1}{2}} a}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$ by $\frac{a^{\frac{1}{2}} b^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}}}$ .

Step 3.10.2

Reorder the factors of $(a^{\frac{1}{2}} - b^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}})$ .

Step 3.11

Combine the numerators over the common denominator.

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b \sqrt{a b}) b^{\frac{1}{2}} - a \sqrt{b a} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4

Simplify the numerator.

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Step 4.1

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

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a \sqrt{b a} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.2

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

$\frac{(a^{\frac{1}{2}} b a^{\frac{1}{2}} - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3

Simplify each term.

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Step 4.3.1

Multiply $a^{\frac{1}{2}}$ by $a^{\frac{1}{2}}$ by adding the exponents.

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Step 4.3.1.1

Move $a^{\frac{1}{2}}$ .

$\frac{(a^{\frac{1}{2}} a^{\frac{1}{2}} b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.1.2

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

$\frac{(a^{\frac{1}{2} + \frac{1}{2}} b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.1.3

Combine the numerators over the common denominator.

$\frac{(a^{\frac{1 + 1}{2}} b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.1.4

Add $1$ and $1$ .

$\frac{(a^{\frac{2}{2}} b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.1.5

Divide $2$ by $2$ .

$\frac{(a^{1} b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.2

Simplify $a^{1} b$ .

$\frac{(a b - b {(a b)}^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.3

Apply the product rule to $a b$ .

$\frac{(a b - b (a^{\frac{1}{2}} b^{\frac{1}{2}})) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4

Multiply $b$ by $b^{\frac{1}{2}}$ by adding the exponents.

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Step 4.3.4.1

Move $b^{\frac{1}{2}}$ .

$\frac{(a b - (b^{\frac{1}{2}} b) a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4.2

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

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Step 4.3.4.2.1

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

$\frac{(a b - (b^{\frac{1}{2}} b^{1}) a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4.2.2

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

$\frac{(a b - b^{\frac{1}{2} + 1} a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4.3

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

$\frac{(a b - b^{\frac{1}{2} + \frac{2}{2}} a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4.4

Combine the numerators over the common denominator.

$\frac{(a b - b^{\frac{1 + 2}{2}} a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.3.4.5

Add $1$ and $2$ .

$\frac{(a b - b^{\frac{3}{2}} a^{\frac{1}{2}}) b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.4

Apply the distributive property.

$\frac{a b \cdot b^{\frac{1}{2}} - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5

Multiply $b$ by $b^{\frac{1}{2}}$ by adding the exponents.

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Step 4.5.1

Move $b^{\frac{1}{2}}$ .

$\frac{a (b^{\frac{1}{2}} b) - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5.2

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

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Step 4.5.2.1

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

$\frac{a (b^{\frac{1}{2}} b^{1}) - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5.2.2

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

$\frac{a b^{\frac{1}{2} + 1} - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5.3

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

$\frac{a b^{\frac{1}{2} + \frac{2}{2}} - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5.4

Combine the numerators over the common denominator.

$\frac{a b^{\frac{1 + 2}{2}} - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.5.5

Add $1$ and $2$ .

$\frac{a b^{\frac{3}{2}} - b^{\frac{3}{2}} a^{\frac{1}{2}} b^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.6

Multiply $b^{\frac{3}{2}}$ by $b^{\frac{1}{2}}$ by adding the exponents.

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Step 4.6.1

Move $b^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - (b^{\frac{1}{2}} b^{\frac{3}{2}}) a^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.6.2

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

$\frac{a b^{\frac{3}{2}} - b^{\frac{1}{2} + \frac{3}{2}} a^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.6.3

Combine the numerators over the common denominator.

$\frac{a b^{\frac{3}{2}} - b^{\frac{1 + 3}{2}} a^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.6.4

Add $1$ and $3$ .

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

Step 4.6.5

Divide $4$ by $2$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a {(b a)}^{\frac{1}{2}} a^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7

Multiply $a$ by $a^{\frac{1}{2}}$ by adding the exponents.

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Step 4.7.1

Move $a^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - (a^{\frac{1}{2}} a) {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7.2

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

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Step 4.7.2.1

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - (a^{\frac{1}{2}} a^{1}) {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7.2.2

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{1}{2} + 1} {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7.3

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{1}{2} + \frac{2}{2}} {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7.4

Combine the numerators over the common denominator.

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{1 + 2}{2}} {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.7.5

Add $1$ and $2$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{3}{2}} {(b a)}^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.8

Apply the product rule to $b a$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{3}{2}} (b^{\frac{1}{2}} a^{\frac{1}{2}}) + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.9

Multiply $a^{\frac{3}{2}}$ by $a^{\frac{1}{2}}$ by adding the exponents.

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Step 4.9.1

Move $a^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - (a^{\frac{1}{2}} a^{\frac{3}{2}}) b^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.9.2

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{1}{2} + \frac{3}{2}} b^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.9.3

Combine the numerators over the common denominator.

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{\frac{1 + 3}{2}} b^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.9.4

Add $1$ and $3$ .

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

Step 4.9.5

Divide $4$ by $2$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{\frac{1}{2}} a (a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.10

Multiply $b^{\frac{1}{2}}$ by $b^{\frac{1}{2}}$ by adding the exponents.

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Step 4.10.1

Move $b^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{\frac{1}{2}} b^{\frac{1}{2}} a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.10.2

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{\frac{1}{2} + \frac{1}{2}} a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.10.3

Combine the numerators over the common denominator.

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{\frac{1 + 1}{2}} a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.10.4

Add $1$ and $1$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{\frac{2}{2}} a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.10.5

Divide $2$ by $2$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b^{1} a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.11

Simplify $b^{1} a \cdot a^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a \cdot a^{\frac{1}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12

Multiply $a$ by $a^{\frac{1}{2}}$ by adding the exponents.

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Step 4.12.1

Move $a^{\frac{1}{2}}$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b (a^{\frac{1}{2}} a)}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12.2

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

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Step 4.12.2.1

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b (a^{\frac{1}{2}} a^{1})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12.2.2

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{1}{2} + 1}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12.3

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

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{1}{2} + \frac{2}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12.4

Combine the numerators over the common denominator.

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{1 + 2}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.12.5

Add $1$ and $2$ .

$\frac{a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{3}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13

Rewrite $a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{3}{2}}$ in a factored form.

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Step 4.13.1

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a b^{\frac{3}{2}} - b^{2} a^{\frac{1}{2}} - a^{2} b^{\frac{1}{2}} + b a^{\frac{3}{2}}$ .

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Step 4.13.1.1

Reorder the expression.

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Step 4.13.1.1.1

Move $b^{2}$ .

$\frac{a b^{\frac{3}{2}} - a^{\frac{1}{2}} b^{2} - a^{2} b^{\frac{1}{2}} + b a^{\frac{3}{2}}}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.1.2

Reorder $b$ and $a^{\frac{3}{2}}$ .

$\frac{a b^{\frac{3}{2}} - a^{\frac{1}{2}} b^{2} - a^{2} b^{\frac{1}{2}} + a^{\frac{3}{2}} b}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.2

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a b^{\frac{3}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}}) - a^{\frac{1}{2}} b^{2} - a^{2} b^{\frac{1}{2}} + a^{\frac{3}{2}} b}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.3

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $- a^{\frac{1}{2}} b^{2}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- b^{\frac{3}{2}}) - a^{2} b^{\frac{1}{2}} + a^{\frac{3}{2}} b}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.4

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $- a^{2} b^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- b^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- a^{\frac{3}{2}}) + a^{\frac{3}{2}} b}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.5

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{3}{2}} b$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- b^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- a^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{2}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.6

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- b^{\frac{3}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} - b^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- a^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{2}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.7

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} - b^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (- a^{\frac{3}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} - b^{\frac{3}{2}} - a^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{2}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.1.8

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} - b^{\frac{3}{2}} - a^{\frac{3}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{2}{2}} b^{\frac{1}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} - b^{\frac{3}{2}} - a^{\frac{3}{2}} + a^{\frac{2}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.2

Regroup terms.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{2}{2}} + a^{\frac{2}{2}} b^{\frac{1}{2}} - b^{\frac{3}{2}} - a^{\frac{3}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.3

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{2}{2}} + a^{\frac{2}{2}} b^{\frac{1}{2}}$ .

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Step 4.13.3.1

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{2}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}}) + a^{\frac{2}{2}} b^{\frac{1}{2}} - b^{\frac{3}{2}} - a^{\frac{3}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.3.2

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{2}{2}} b^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}}) - b^{\frac{3}{2}} - a^{\frac{3}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.3.3

Factor $a^{\frac{1}{2}} b^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}}) + a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - b^{\frac{3}{2}} - a^{\frac{3}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.4

Factor $- 1$ out of $- b^{\frac{3}{2}} - a^{\frac{3}{2}}$ .

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Step 4.13.4.1

Factor $- 1$ out of $- b^{\frac{3}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{3}{2}}) - a^{\frac{3}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.4.2

Factor $- 1$ out of $- a^{\frac{3}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{3}{2}}) - (a^{\frac{3}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.4.3

Factor $- 1$ out of $- (b^{\frac{3}{2}}) - (a^{\frac{3}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{3}{2}} + a^{\frac{3}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.5

Rewrite $b^{\frac{3}{2}}$ as ${(b^{\frac{1}{2}})}^{3}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ({(b^{\frac{1}{2}})}^{3} + a^{\frac{3}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.6

Rewrite $a^{\frac{3}{2}}$ as ${(a^{\frac{1}{2}})}^{3}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ({(b^{\frac{1}{2}})}^{3} + {(a^{\frac{1}{2}})}^{3}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.7

Since both terms are perfect cubes, factor using the sum of cubes formula, $a^{3} + b^{3} = (a + b) (a^{2} - a b + b^{2})$ where $a = b^{\frac{1}{2}}$ and $b = a^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) ({(b^{\frac{1}{2}})}^{2} - b^{\frac{1}{2}} a^{\frac{1}{2}} + {(a^{\frac{1}{2}})}^{2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8

Simplify.

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Step 4.13.8.1

Multiply the exponents in ${(b^{\frac{1}{2}})}^{2}$ .

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Step 4.13.8.1.1

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

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b^{\frac{1}{2} \cdot 2} - b^{\frac{1}{2}} a^{\frac{1}{2}} + {(a^{\frac{1}{2}})}^{2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.1.2

Cancel the common factor of $2$ .

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Step 4.13.8.1.2.1

Cancel the common factor.

Step 4.13.8.1.2.2

Rewrite the expression.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b^{1} - b^{\frac{1}{2}} a^{\frac{1}{2}} + {(a^{\frac{1}{2}})}^{2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.2

Simplify.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + {(a^{\frac{1}{2}})}^{2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.3

Multiply the exponents in ${(a^{\frac{1}{2}})}^{2}$ .

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Step 4.13.8.3.1

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

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a^{\frac{1}{2} \cdot 2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.3.2

Cancel the common factor of $2$ .

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Step 4.13.8.3.2.1

Cancel the common factor.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a^{\frac{1}{2} \cdot 2})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.3.2.2

Rewrite the expression.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a^{1})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.8.4

Simplify.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a)))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9

Factor $b^{\frac{1}{2}} + a^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - b^{\frac{1}{2}} a^{\frac{1}{2}} + a)$ .

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Step 4.13.9.1

Reorder the expression.

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Step 4.13.9.1.1

Move $b^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}} + a))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9.1.2

Move $- 1 a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (b + a - 1 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9.1.3

Reorder $b$ and $a$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9.2

Factor $b^{\frac{1}{2}} + a^{\frac{1}{2}}$ out of $a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}}) - (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9.3

Factor $b^{\frac{1}{2}} + a^{\frac{1}{2}}$ out of $- (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}})$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}}) + (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- 1 (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.9.4

Factor $b^{\frac{1}{2}} + a^{\frac{1}{2}}$ out of $(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}}) + (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- 1 (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}}))$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - 1 (a + b - 1 a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.10

Rewrite $- 1 a^{\frac{1}{2}}$ as $- a^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - 1 (a + b - a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.11

Apply the distributive property.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - 1 a - 1 b - 1 (- a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.12

Simplify.

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Step 4.13.12.1

Rewrite $- 1 a$ as $- a$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - a - 1 b - 1 (- a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.12.2

Rewrite $- 1 b$ as $- b$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - a - b - 1 (- a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.12.3

Multiply $- 1 (- a^{\frac{1}{2}} b^{\frac{1}{2}})$ .

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Step 4.13.12.3.1

Multiply $- 1$ by $- 1$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - a - b + 1 (a^{\frac{1}{2}} b^{\frac{1}{2}})))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.12.3.2

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

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} ((b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a^{\frac{1}{2}} b^{\frac{1}{2}} - a - b + a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 4.13.13

Add $a^{\frac{1}{2}} b^{\frac{1}{2}}$ and $a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- a - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 5

Simplify terms.

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Step 5.1

Cancel the common factor.

$\frac{a^{\frac{1}{2}} b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- a - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 5.2

Rewrite the expression.

$\frac{(b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}})) (- a - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 5.3

Cancel the common factor.

$\frac{b^{\frac{1}{2}} (b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- a - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{b^{\frac{1}{2}} (a^{\frac{1}{2}} - b^{\frac{1}{2}})}$

Step 5.4

Rewrite the expression.

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- a - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.5

Factor $- 1$ out of $- a$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- (a) - b + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.6

Factor $- 1$ out of $- b$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- (a) - (b) + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.7

Factor $- 1$ out of $- (a) - (b)$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- (a + b) + 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.8

Factor $- 1$ out of $2 a^{\frac{1}{2}} b^{\frac{1}{2}}$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- (a + b) - (- 2 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.9

Factor $- 1$ out of $- (a + b) - (- 2 a^{\frac{1}{2}} b^{\frac{1}{2}})$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- (a + b - 2 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.10

Simplify the expression.

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Step 5.10.1

Rewrite $- (a + b - 2 a^{\frac{1}{2}} b^{\frac{1}{2}})$ as $- 1 (a + b - 2 a^{\frac{1}{2}} b^{\frac{1}{2}})$ .

$\frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (- 1 (a + b - 2 a^{\frac{1}{2}} b^{\frac{1}{2}}))}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$

Step 5.10.2

Move the negative in front of the fraction.

$- \frac{(b^{\frac{1}{2}} + a^{\frac{1}{2}}) (a + b - 2 a^{\frac{1}{2}} b^{\frac{1}{2}})}{a^{\frac{1}{2}} - b^{\frac{1}{2}}}$