Precalculus Examples

$\frac{(5 b) {(3 x - 9)}^{\frac{3}{4}} (5 x + 10) - {(3 x - 9)}^{- \frac{1}{4}} (20 b)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1

Simplify the numerator.

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Step 1.1

Factor $b$ out of $5 b {(3 x - 9)}^{\frac{3}{4}} (5 x + 10) - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20 b$ .

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Step 1.1.1

Factor $b$ out of $5 b {(3 x - 9)}^{\frac{3}{4}} (5 x + 10)$ .

$\frac{b (5 {(3 x - 9)}^{\frac{3}{4}} (5 x + 10)) - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20 b}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.1.2

Factor $b$ out of $- {(3 x - 9)}^{- \frac{1}{4}} \cdot 20 b$ .

$\frac{b (5 {(3 x - 9)}^{\frac{3}{4}} (5 x + 10)) + b (- {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.1.3

Factor $b$ out of $b (5 {(3 x - 9)}^{\frac{3}{4}} (5 x + 10)) + b (- {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)$ .

$\frac{b (5 {(3 x - 9)}^{\frac{3}{4}} (5 x + 10) - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.2

Apply the distributive property.

$\frac{b (5 {(3 x - 9)}^{\frac{3}{4}} (5 x) + 5 {(3 x - 9)}^{\frac{3}{4}} \cdot 10 - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.3

Rewrite using the commutative property of multiplication.

$\frac{b (5 \cdot 5 {(3 x - 9)}^{\frac{3}{4}} x + 5 {(3 x - 9)}^{\frac{3}{4}} \cdot 10 - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.4

Multiply $10$ by $5$ .

$\frac{b (5 \cdot 5 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.5

Multiply $5$ by $5$ .

$\frac{b (25 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} - {(3 x - 9)}^{- \frac{1}{4}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.6

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{b (25 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} - \frac{1}{{(3 x - 9)}^{\frac{1}{4}}} \cdot 20)}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.7

Multiply $- \frac{1}{{(3 x - 9)}^{\frac{1}{4}}} \cdot 20$ .

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Step 1.7.1

Multiply $20$ by $- 1$ .

$\frac{b (25 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} - 20 \frac{1}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.7.2

Combine $- 20$ and $\frac{1}{{(3 x - 9)}^{\frac{1}{4}}}$ .

$\frac{b (25 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} + \frac{- 20}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.8

Move the negative in front of the fraction.

$\frac{b (25 {(3 x - 9)}^{\frac{3}{4}} x + 50 {(3 x - 9)}^{\frac{3}{4}} - \frac{20}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.9

To write $25 {(3 x - 9)}^{\frac{3}{4}} x$ as a fraction with a common denominator, multiply by $\frac{{(3 x - 9)}^{\frac{1}{4}}}{{(3 x - 9)}^{\frac{1}{4}}}$ .

$\frac{b (50 {(3 x - 9)}^{\frac{3}{4}} + \frac{25 {(3 x - 9)}^{\frac{3}{4}} x {(3 x - 9)}^{\frac{1}{4}}}{{(3 x - 9)}^{\frac{1}{4}}} - \frac{20}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.10

Combine the numerators over the common denominator.

$\frac{b (50 {(3 x - 9)}^{\frac{3}{4}} + \frac{25 {(3 x - 9)}^{\frac{3}{4}} x {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.11

To write $50 {(3 x - 9)}^{\frac{3}{4}}$ as a fraction with a common denominator, multiply by $\frac{{(3 x - 9)}^{\frac{1}{4}}}{{(3 x - 9)}^{\frac{1}{4}}}$ .

$\frac{b (\frac{50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}}{{(3 x - 9)}^{\frac{1}{4}}} + \frac{25 {(3 x - 9)}^{\frac{3}{4}} x {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}})}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.12

Combine the numerators over the common denominator.

$\frac{b \frac{50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 25 {(3 x - 9)}^{\frac{3}{4}} x {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.13

Reorder terms.

$\frac{b \frac{50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 25 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14

Rewrite $\frac{50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 25 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}}$ in a factored form.

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Step 1.14.1

Factor $5$ out of $50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 25 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 20$ .

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Step 1.14.1.1

Factor $5$ out of $50 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 25 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 20}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.1.2

Factor $5$ out of $25 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) - 20}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.1.3

Factor $5$ out of $- 20$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (- 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.1.4

Factor $5$ out of $5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}})$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (- 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.1.5

Factor $5$ out of $5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}}) + 5 (- 4)$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.2

Multiply ${(3 x - 9)}^{\frac{3}{4}}$ by ${(3 x - 9)}^{\frac{1}{4}}$ by adding the exponents.

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Step 1.14.2.1

Move ${(3 x - 9)}^{\frac{1}{4}}$ .

$\frac{b \frac{5 (10 ({(3 x - 9)}^{\frac{1}{4}} {(3 x - 9)}^{\frac{3}{4}}) + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.2.2

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

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{1}{4} + \frac{3}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.2.3

Combine the numerators over the common denominator.

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{1 + 3}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.2.4

Add $1$ and $3$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{\frac{4}{4}} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.2.5

Divide $4$ by $4$ .

$\frac{b \frac{5 (10 {(3 x - 9)}^{1} + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.3

Simplify $10 {(3 x - 9)}^{1}$ .

$\frac{b \frac{5 (10 (3 x - 9) + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.4

Apply the distributive property.

$\frac{b \frac{5 (10 (3 x) + 10 \cdot - 9 + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.5

Multiply $3$ by $10$ .

$\frac{b \frac{5 (30 x + 10 \cdot - 9 + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.6

Multiply $10$ by $- 9$ .

$\frac{b \frac{5 (30 x - 90 + 5 x {(3 x - 9)}^{\frac{3}{4}} {(3 x - 9)}^{\frac{1}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.7

Multiply ${(3 x - 9)}^{\frac{3}{4}}$ by ${(3 x - 9)}^{\frac{1}{4}}$ by adding the exponents.

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Step 1.14.7.1

Move ${(3 x - 9)}^{\frac{1}{4}}$ .

$\frac{b \frac{5 (30 x - 90 + 5 x ({(3 x - 9)}^{\frac{1}{4}} {(3 x - 9)}^{\frac{3}{4}}) - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.7.2

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

$\frac{b \frac{5 (30 x - 90 + 5 x {(3 x - 9)}^{\frac{1}{4} + \frac{3}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.7.3

Combine the numerators over the common denominator.

$\frac{b \frac{5 (30 x - 90 + 5 x {(3 x - 9)}^{\frac{1 + 3}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.7.4

Add $1$ and $3$ .

$\frac{b \frac{5 (30 x - 90 + 5 x {(3 x - 9)}^{\frac{4}{4}} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.7.5

Divide $4$ by $4$ .

$\frac{b \frac{5 (30 x - 90 + 5 x {(3 x - 9)}^{1} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.8

Simplify $5 x {(3 x - 9)}^{1}$ .

$\frac{b \frac{5 (30 x - 90 + 5 x (3 x - 9) - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.9

Apply the distributive property.

$\frac{b \frac{5 (30 x - 90 + 5 x (3 x) + 5 x \cdot - 9 - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.10

Rewrite using the commutative property of multiplication.

$\frac{b \frac{5 (30 x - 90 + 5 \cdot 3 x \cdot x + 5 x \cdot - 9 - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.11

Multiply $- 9$ by $5$ .

$\frac{b \frac{5 (30 x - 90 + 5 \cdot 3 x \cdot x - 45 x - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.12

Simplify each term.

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Step 1.14.12.1

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

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Step 1.14.12.1.1

Move $x$ .

$\frac{b \frac{5 (30 x - 90 + 5 \cdot 3 (x \cdot x) - 45 x - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.12.1.2

Multiply $x$ by $x$ .

$\frac{b \frac{5 (30 x - 90 + 5 \cdot 3 x^{2} - 45 x - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.12.2

Multiply $5$ by $3$ .

$\frac{b \frac{5 (30 x - 90 + 15 x^{2} - 45 x - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.13

Subtract $45 x$ from $30 x$ .

$\frac{b \frac{5 (- 15 x - 90 + 15 x^{2} - 4)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.14

Subtract $4$ from $- 90$ .

$\frac{b \frac{5 (- 15 x + 15 x^{2} - 94)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 1.14.15

Reorder terms.

$\frac{b \frac{5 (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 2

Combine $b$ and $\frac{5 (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{1}{4}}}$ .

$\frac{\frac{b (5 (15 x^{2} - 15 x - 94))}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 3

Move $5$ to the left of $b$ .

$\frac{\frac{5 b (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{1}{4}}}}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 4

Multiply the numerator by the reciprocal of the denominator.

$\frac{5 b (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{1}{4}}} \cdot \frac{1}{10 b {(3 x - 9)}^{\frac{3}{2}}}$

Step 5

Combine.

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{1}{4}} (10 b {(3 x - 9)}^{\frac{3}{2}})}$

Step 6

Multiply ${(3 x - 9)}^{\frac{1}{4}}$ by ${(3 x - 9)}^{\frac{3}{2}}$ by adding the exponents.

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Step 6.1

Move ${(3 x - 9)}^{\frac{3}{2}}$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3}{2}} {(3 x - 9)}^{\frac{1}{4}} (10 b)}$

Step 6.2

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

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3}{2} + \frac{1}{4}} (10 b)}$

Step 6.3

To write $\frac{3}{2}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3}{2} \cdot \frac{2}{2} + \frac{1}{4}} (10 b)}$

Step 6.4

Write each expression with a common denominator of $4$ , by multiplying each by an appropriate factor of $1$ .

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Step 6.4.1

Multiply $\frac{3}{2}$ by $\frac{2}{2}$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3 \cdot 2}{2 \cdot 2} + \frac{1}{4}} (10 b)}$

Step 6.4.2

Multiply $2$ by $2$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3 \cdot 2}{4} + \frac{1}{4}} (10 b)}$

Step 6.5

Combine the numerators over the common denominator.

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{3 \cdot 2 + 1}{4}} (10 b)}$

Step 6.6

Simplify the numerator.

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Step 6.6.1

Multiply $3$ by $2$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{6 + 1}{4}} (10 b)}$

Step 6.6.2

Add $6$ and $1$ .

$\frac{5 b (15 x^{2} - 15 x - 94) \cdot 1}{{(3 x - 9)}^{\frac{7}{4}} (10 b)}$

Step 7

Multiply $5 b (15 x^{2} - 15 x - 94)$ by $1$ .

$\frac{5 b (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{7}{4}} (10 b)}$

Step 8

Factor $5$ out of $5 b (15 x^{2} - 15 x - 94)$ .

$\frac{5 (b (15 x^{2} - 15 x - 94))}{{(3 x - 9)}^{\frac{7}{4}} (10 b)}$

Step 9

Cancel the common factors.

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Step 9.1

Factor $5$ out of ${(3 x - 9)}^{\frac{7}{4}} (10 b)$ .

$\frac{5 (b (15 x^{2} - 15 x - 94))}{5 ({(3 x - 9)}^{\frac{7}{4}} (2 b))}$

Step 9.2

Cancel the common factor.

$\frac{5 (b (15 x^{2} - 15 x - 94))}{5 ({(3 x - 9)}^{\frac{7}{4}} (2 b))}$

Step 9.3

Rewrite the expression.

$\frac{b (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{7}{4}} (2 b)}$

Step 10

Cancel the common factor.

$\frac{b (15 x^{2} - 15 x - 94)}{{(3 x - 9)}^{\frac{7}{4}} (2 b)}$

Step 11

Rewrite the expression.

$\frac{15 x^{2} - 15 x - 94}{{(3 x - 9)}^{\frac{7}{4}} \cdot (2)}$

Step 12

Move $2$ to the left of ${(3 x - 9)}^{\frac{7}{4}}$ .

$\frac{15 x^{2} - 15 x - 94}{2 {(3 x - 9)}^{\frac{7}{4}}}$