Algebra Examples

${(x^{2} + 9)}^{4} (- \frac{1}{3}) {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1

Simplify each term.

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Step 1.1

Use the Binomial Theorem.

$({(x^{2})}^{4} + 4 {(x^{2})}^{3} \cdot 9 + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2

Simplify each term.

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Step 1.2.1

Multiply the exponents in ${(x^{2})}^{4}$ .

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Step 1.2.1.1

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

$(x^{2 \cdot 4} + 4 {(x^{2})}^{3} \cdot 9 + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.1.2

Multiply $2$ by $4$ .

$(x^{8} + 4 {(x^{2})}^{3} \cdot 9 + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.2

Multiply the exponents in ${(x^{2})}^{3}$ .

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Step 1.2.2.1

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

$(x^{8} + 4 x^{2 \cdot 3} \cdot 9 + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.2.2

Multiply $2$ by $3$ .

$(x^{8} + 4 x^{6} \cdot 9 + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.3

Multiply $9$ by $4$ .

$(x^{8} + 36 x^{6} + 6 {(x^{2})}^{2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.4

Multiply the exponents in ${(x^{2})}^{2}$ .

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Step 1.2.4.1

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

$(x^{8} + 36 x^{6} + 6 x^{2 \cdot 2} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.4.2

Multiply $2$ by $2$ .

$(x^{8} + 36 x^{6} + 6 x^{4} \cdot 9^{2} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.5

Raise $9$ to the power of $2$ .

$(x^{8} + 36 x^{6} + 6 x^{4} \cdot 81 + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.6

Multiply $81$ by $6$ .

$(x^{8} + 36 x^{6} + 486 x^{4} + 4 x^{2} \cdot 9^{3} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.7

Raise $9$ to the power of $3$ .

$(x^{8} + 36 x^{6} + 486 x^{4} + 4 x^{2} \cdot 729 + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.8

Multiply $729$ by $4$ .

$(x^{8} + 36 x^{6} + 486 x^{4} + 2916 x^{2} + 9^{4}) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.2.9

Raise $9$ to the power of $4$ .

$(x^{8} + 36 x^{6} + 486 x^{4} + 2916 x^{2} + 6561) (- \frac{1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.3

Apply the distributive property.

$(x^{8} (- \frac{1}{3}) + 36 x^{6} (- \frac{1}{3}) + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4

Simplify.

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Step 1.4.1

Combine $x^{8}$ and $\frac{1}{3}$ .

$(- \frac{x^{8}}{3} + 36 x^{6} (- \frac{1}{3}) + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.2

Cancel the common factor of $3$ .

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Step 1.4.2.1

Move the leading negative in $- \frac{1}{3}$ into the numerator.

$(- \frac{x^{8}}{3} + 36 x^{6} \frac{- 1}{3} + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.2.2

Factor $3$ out of $36 x^{6}$ .

$(- \frac{x^{8}}{3} + 3 (12 x^{6}) \frac{- 1}{3} + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.2.3

Cancel the common factor.

Step 1.4.2.4

Rewrite the expression.

$(- \frac{x^{8}}{3} + 12 x^{6} \cdot - 1 + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.3

Multiply $- 1$ by $12$ .

$(- \frac{x^{8}}{3} - 12 x^{6} + 486 x^{4} (- \frac{1}{3}) + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.4

Cancel the common factor of $3$ .

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Step 1.4.4.1

Move the leading negative in $- \frac{1}{3}$ into the numerator.

$(- \frac{x^{8}}{3} - 12 x^{6} + 486 x^{4} \frac{- 1}{3} + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.4.2

Factor $3$ out of $486 x^{4}$ .

$(- \frac{x^{8}}{3} - 12 x^{6} + 3 (162 x^{4}) \frac{- 1}{3} + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.4.3

Cancel the common factor.

Step 1.4.4.4

Rewrite the expression.

$(- \frac{x^{8}}{3} - 12 x^{6} + 162 x^{4} \cdot - 1 + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.5

Multiply $- 1$ by $162$ .

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} + 2916 x^{2} (- \frac{1}{3}) + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.6

Cancel the common factor of $3$ .

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Step 1.4.6.1

Move the leading negative in $- \frac{1}{3}$ into the numerator.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} + 2916 x^{2} \frac{- 1}{3} + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.6.2

Factor $3$ out of $2916 x^{2}$ .

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} + 3 (972 x^{2}) \frac{- 1}{3} + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.6.3

Cancel the common factor.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} + 3 (972 x^{2}) \frac{- 1}{3} + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.6.4

Rewrite the expression.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} + 972 x^{2} \cdot - 1 + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.7

Multiply $- 1$ by $972$ .

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} + 6561 (- \frac{1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.8

Cancel the common factor of $3$ .

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Step 1.4.8.1

Move the leading negative in $- \frac{1}{3}$ into the numerator.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} + 6561 (\frac{- 1}{3})) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.8.2

Factor $3$ out of $6561$ .

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} + 3 (2187) \frac{- 1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.8.3

Cancel the common factor.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} + 3 \cdot 2187 \frac{- 1}{3}) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.8.4

Rewrite the expression.

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} + 2187 \cdot - 1) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.4.9

Multiply $2187$ by $- 1$ .

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} - 2187) \cdot {(x + 6)}^{- \frac{4}{3}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.5

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

$(- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} - 2187) \cdot \frac{1}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.6

Multiply $- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} - 2187$ by $\frac{1}{{(x + 6)}^{\frac{4}{3}}}$ .

$\frac{- \frac{x^{8}}{3} - 12 x^{6} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7

Simplify the numerator.

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Step 1.7.1

To write $- 12 x^{6}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{- \frac{x^{8}}{3} - 12 x^{6} \cdot \frac{3}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.2

Combine $- 12 x^{6}$ and $\frac{3}{3}$ .

$\frac{- \frac{x^{8}}{3} + \frac{- 12 x^{6} \cdot 3}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.3

Combine the numerators over the common denominator.

$\frac{\frac{- x^{8} - 12 x^{6} \cdot 3}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.4

Simplify the numerator.

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Step 1.7.4.1

Factor $x^{6}$ out of $- x^{8} - 12 x^{6} \cdot 3$ .

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Step 1.7.4.1.1

Factor $x^{6}$ out of $- x^{8}$ .

$\frac{\frac{x^{6} (- x^{2}) - 12 x^{6} \cdot 3}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.4.1.2

Factor $x^{6}$ out of $- 12 x^{6} \cdot 3$ .

$\frac{\frac{x^{6} (- x^{2}) + x^{6} (- 12 \cdot 3)}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.4.1.3

Factor $x^{6}$ out of $x^{6} (- x^{2}) + x^{6} (- 12 \cdot 3)$ .

$\frac{\frac{x^{6} (- x^{2} - 12 \cdot 3)}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.4.2

Multiply $- 12$ by $3$ .

$\frac{\frac{x^{6} (- x^{2} - 36)}{3} - 162 x^{4} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.5

To write $- 162 x^{4}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{\frac{x^{6} (- x^{2} - 36)}{3} - 162 x^{4} \cdot \frac{3}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.6

Combine $- 162 x^{4}$ and $\frac{3}{3}$ .

$\frac{\frac{x^{6} (- x^{2} - 36)}{3} + \frac{- 162 x^{4} \cdot 3}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.7

Combine the numerators over the common denominator.

$\frac{\frac{x^{6} (- x^{2} - 36) - 162 x^{4} \cdot 3}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8

Simplify the numerator.

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Step 1.7.8.1

Factor $x^{4}$ out of $x^{6} (- x^{2} - 36) - 162 x^{4} \cdot 3$ .

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Step 1.7.8.1.1

Factor $x^{4}$ out of $x^{6} (- x^{2} - 36)$ .

$\frac{\frac{x^{4} (x^{2} (- x^{2} - 36)) - 162 x^{4} \cdot 3}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.1.2

Factor $x^{4}$ out of $- 162 x^{4} \cdot 3$ .

$\frac{\frac{x^{4} (x^{2} (- x^{2} - 36)) + x^{4} (- 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.1.3

Factor $x^{4}$ out of $x^{4} (x^{2} (- x^{2} - 36)) + x^{4} (- 162 \cdot 3)$ .

$\frac{\frac{x^{4} (x^{2} (- x^{2} - 36) - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.2

Apply the distributive property.

$\frac{\frac{x^{4} (x^{2} (- x^{2}) + x^{2} \cdot - 36 - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.3

Rewrite using the commutative property of multiplication.

$\frac{\frac{x^{4} (- x^{2} x^{2} + x^{2} \cdot - 36 - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.4

Move $- 36$ to the left of $x^{2}$ .

$\frac{\frac{x^{4} (- x^{2} x^{2} - 36 \cdot x^{2} - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.5

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

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Step 1.7.8.5.1

Move $x^{2}$ .

$\frac{\frac{x^{4} (- (x^{2} x^{2}) - 36 \cdot x^{2} - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.5.2

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

$\frac{\frac{x^{4} (- x^{2 + 2} - 36 \cdot x^{2} - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.5.3

Add $2$ and $2$ .

$\frac{\frac{x^{4} (- x^{4} - 36 \cdot x^{2} - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

$\frac{\frac{x^{4} (- x^{4} - 36 x^{2} - 162 \cdot 3)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.8.6

Multiply $- 162$ by $3$ .

$\frac{\frac{x^{4} (- x^{4} - 36 x^{2} - 486)}{3} - 972 x^{2} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.9

To write $- 972 x^{2}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{\frac{x^{4} (- x^{4} - 36 x^{2} - 486)}{3} - 972 x^{2} \cdot \frac{3}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.10

Combine $- 972 x^{2}$ and $\frac{3}{3}$ .

$\frac{\frac{x^{4} (- x^{4} - 36 x^{2} - 486)}{3} + \frac{- 972 x^{2} \cdot 3}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.11

Combine the numerators over the common denominator.

$\frac{\frac{x^{4} (- x^{4} - 36 x^{2} - 486) - 972 x^{2} \cdot 3}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12

Simplify the numerator.

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Step 1.7.12.1

Factor $x^{2}$ out of $x^{4} (- x^{4} - 36 x^{2} - 486) - 972 x^{2} \cdot 3$ .

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Step 1.7.12.1.1

Factor $x^{2}$ out of $x^{4} (- x^{4} - 36 x^{2} - 486)$ .

$\frac{\frac{x^{2} (x^{2} (- x^{4} - 36 x^{2} - 486)) - 972 x^{2} \cdot 3}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.1.2

Factor $x^{2}$ out of $- 972 x^{2} \cdot 3$ .

$\frac{\frac{x^{2} (x^{2} (- x^{4} - 36 x^{2} - 486)) + x^{2} (- 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.1.3

Factor $x^{2}$ out of $x^{2} (x^{2} (- x^{4} - 36 x^{2} - 486)) + x^{2} (- 972 \cdot 3)$ .

$\frac{\frac{x^{2} (x^{2} (- x^{4} - 36 x^{2} - 486) - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.2

Apply the distributive property.

$\frac{\frac{x^{2} (x^{2} (- x^{4}) + x^{2} (- 36 x^{2}) + x^{2} \cdot - 486 - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.3

Simplify.

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Step 1.7.12.3.1

Rewrite using the commutative property of multiplication.

$\frac{\frac{x^{2} (- x^{2} x^{4} + x^{2} (- 36 x^{2}) + x^{2} \cdot - 486 - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.3.2

Rewrite using the commutative property of multiplication.

$\frac{\frac{x^{2} (- x^{2} x^{4} - 36 x^{2} x^{2} + x^{2} \cdot - 486 - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.3.3

Move $- 486$ to the left of $x^{2}$ .

$\frac{\frac{x^{2} (- x^{2} x^{4} - 36 x^{2} x^{2} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4

Simplify each term.

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Step 1.7.12.4.1

Multiply $x^{2}$ by $x^{4}$ by adding the exponents.

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Step 1.7.12.4.1.1

Move $x^{4}$ .

$\frac{\frac{x^{2} (- (x^{4} x^{2}) - 36 x^{2} x^{2} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4.1.2

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

$\frac{\frac{x^{2} (- x^{4 + 2} - 36 x^{2} x^{2} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4.1.3

Add $4$ and $2$ .

$\frac{\frac{x^{2} (- x^{6} - 36 x^{2} x^{2} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4.2

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

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Step 1.7.12.4.2.1

Move $x^{2}$ .

$\frac{\frac{x^{2} (- x^{6} - 36 (x^{2} x^{2}) - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4.2.2

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

$\frac{\frac{x^{2} (- x^{6} - 36 x^{2 + 2} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.4.2.3

Add $2$ and $2$ .

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 \cdot x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 x^{2} - 972 \cdot 3)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.12.5

Multiply $- 972$ by $3$ .

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 x^{2} - 2916)}{3} - 2187}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.13

To write $- 2187$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 x^{2} - 2916)}{3} - 2187 \cdot \frac{3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.14

Combine $- 2187$ and $\frac{3}{3}$ .

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 x^{2} - 2916)}{3} + \frac{- 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.15

Combine the numerators over the common denominator.

$\frac{\frac{x^{2} (- x^{6} - 36 x^{4} - 486 x^{2} - 2916) - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16

Simplify the numerator.

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Step 1.7.16.1

Apply the distributive property.

$\frac{\frac{x^{2} (- x^{6}) + x^{2} (- 36 x^{4}) + x^{2} (- 486 x^{2}) + x^{2} \cdot - 2916 - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.2

Simplify.

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Step 1.7.16.2.1

Rewrite using the commutative property of multiplication.

$\frac{\frac{- x^{2} x^{6} + x^{2} (- 36 x^{4}) + x^{2} (- 486 x^{2}) + x^{2} \cdot - 2916 - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.2.2

Rewrite using the commutative property of multiplication.

$\frac{\frac{- x^{2} x^{6} - 36 x^{2} x^{4} + x^{2} (- 486 x^{2}) + x^{2} \cdot - 2916 - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.2.3

Rewrite using the commutative property of multiplication.

$\frac{\frac{- x^{2} x^{6} - 36 x^{2} x^{4} - 486 x^{2} x^{2} + x^{2} \cdot - 2916 - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.2.4

Move $- 2916$ to the left of $x^{2}$ .

$\frac{\frac{- x^{2} x^{6} - 36 x^{2} x^{4} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3

Simplify each term.

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Step 1.7.16.3.1

Multiply $x^{2}$ by $x^{6}$ by adding the exponents.

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Step 1.7.16.3.1.1

Move $x^{6}$ .

$\frac{\frac{- (x^{6} x^{2}) - 36 x^{2} x^{4} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.1.2

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

$\frac{\frac{- x^{6 + 2} - 36 x^{2} x^{4} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.1.3

Add $6$ and $2$ .

$\frac{\frac{- x^{8} - 36 x^{2} x^{4} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.2

Multiply $x^{2}$ by $x^{4}$ by adding the exponents.

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Step 1.7.16.3.2.1

Move $x^{4}$ .

$\frac{\frac{- x^{8} - 36 (x^{4} x^{2}) - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.2.2

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

$\frac{\frac{- x^{8} - 36 x^{4 + 2} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.2.3

Add $4$ and $2$ .

$\frac{\frac{- x^{8} - 36 x^{6} - 486 x^{2} x^{2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.3

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

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Step 1.7.16.3.3.1

Move $x^{2}$ .

$\frac{\frac{- x^{8} - 36 x^{6} - 486 (x^{2} x^{2}) - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.3.2

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

$\frac{\frac{- x^{8} - 36 x^{6} - 486 x^{2 + 2} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.3.3.3

Add $2$ and $2$ .

$\frac{\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 \cdot x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

$\frac{\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 2187 \cdot 3}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.7.16.4

Multiply $- 2187$ by $3$ .

$\frac{\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3}}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.8

Multiply the numerator by the reciprocal of the denominator.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3} \cdot \frac{1}{{(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.9

Multiply $\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3}$ by $\frac{1}{{(x + 6)}^{\frac{4}{3}}}$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + {(x + 6)}^{- \frac{1}{3}} (4) {(x^{2} + 9)}^{3} (2 x)$

Step 1.10

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{1}{{(x + 6)}^{\frac{1}{3}}} \cdot 4 {(x^{2} + 9)}^{3} (2 x)$

Step 1.11

Combine $\frac{1}{{(x + 6)}^{\frac{1}{3}}}$ and $4$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{4}{{(x + 6)}^{\frac{1}{3}}} {(x^{2} + 9)}^{3} (2 x)$

Step 1.12

Rewrite using the commutative property of multiplication.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + 2 \frac{4}{{(x + 6)}^{\frac{1}{3}}} {(x^{2} + 9)}^{3} x$

Step 1.13

Multiply $2 \frac{4}{{(x + 6)}^{\frac{1}{3}}}$ .

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Step 1.13.1

Combine $2$ and $\frac{4}{{(x + 6)}^{\frac{1}{3}}}$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{2 \cdot 4}{{(x + 6)}^{\frac{1}{3}}} {(x^{2} + 9)}^{3} x$

Step 1.13.2

Multiply $2$ by $4$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} {(x^{2} + 9)}^{3} x$

Step 1.14

Use the Binomial Theorem.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} ({(x^{2})}^{3} + 3 {(x^{2})}^{2} \cdot 9 + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15

Simplify each term.

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Step 1.15.1

Multiply the exponents in ${(x^{2})}^{3}$ .

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Step 1.15.1.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{2 \cdot 3} + 3 {(x^{2})}^{2} \cdot 9 + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15.1.2

Multiply $2$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 3 {(x^{2})}^{2} \cdot 9 + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15.2

Multiply the exponents in ${(x^{2})}^{2}$ .

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Step 1.15.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 3 x^{2 \cdot 2} \cdot 9 + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15.2.2

Multiply $2$ by $2$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 3 x^{4} \cdot 9 + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15.3

Multiply $9$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 27 x^{4} + 3 x^{2} \cdot 9^{2} + 9^{3}) x$

Step 1.15.4

Raise $9$ to the power of $2$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 27 x^{4} + 3 x^{2} \cdot 81 + 9^{3}) x$

Step 1.15.5

Multiply $81$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 27 x^{4} + 243 x^{2} + 9^{3}) x$

Step 1.15.6

Raise $9$ to the power of $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8}{{(x + 6)}^{\frac{1}{3}}} (x^{6} + 27 x^{4} + 243 x^{2} + 729) x$

Step 1.16

Multiply $\frac{8}{{(x + 6)}^{\frac{1}{3}}}$ by $x^{6} + 27 x^{4} + 243 x^{2} + 729$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729)}{{(x + 6)}^{\frac{1}{3}}} x$

Step 1.17

Combine $\frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729)}{{(x + 6)}^{\frac{1}{3}}}$ and $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x}{{(x + 6)}^{\frac{1}{3}}}$

Step 2

To write $\frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x}{{(x + 6)}^{\frac{1}{3}}}$ as a fraction with a common denominator, multiply by $\frac{3 {(x + 6)}^{\frac{3}{3}}}{3 {(x + 6)}^{\frac{3}{3}}}$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x}{{(x + 6)}^{\frac{1}{3}}} \cdot \frac{3 {(x + 6)}^{\frac{3}{3}}}{3 {(x + 6)}^{\frac{3}{3}}}$

Step 3

Write each expression with a common denominator of $3 {(x + 6)}^{\frac{4}{3}}$ , by multiplying each by an appropriate factor of $1$ .

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Step 3.1

Multiply $\frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x}{{(x + 6)}^{\frac{1}{3}}}$ by $\frac{3 {(x + 6)}^{\frac{3}{3}}}{3 {(x + 6)}^{\frac{3}{3}}}$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{{(x + 6)}^{\frac{1}{3}} (3 {(x + 6)}^{\frac{3}{3}})}$

Step 3.2

Multiply ${(x + 6)}^{\frac{1}{3}}$ by ${(x + 6)}^{\frac{3}{3}}$ by adding the exponents.

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Step 3.2.1

Move ${(x + 6)}^{\frac{3}{3}}$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{{(x + 6)}^{\frac{3}{3}} {(x + 6)}^{\frac{1}{3}} \cdot 3}$

Step 3.2.2

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

Step 3.2.3

Combine the numerators over the common denominator.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{{(x + 6)}^{\frac{3 + 1}{3}} \cdot 3}$

Step 3.2.4

Add $3$ and $1$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{{(x + 6)}^{\frac{4}{3}} \cdot 3}$

Step 3.3

Reorder the factors of ${(x + 6)}^{\frac{4}{3}} \cdot 3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561}{3 {(x + 6)}^{\frac{4}{3}}} + \frac{8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 4

Simplify terms.

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Step 4.1

Combine the numerators over the common denominator.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 4.2

Cancel the common factor of $3$ .

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Step 4.2.1

Cancel the common factor.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{\frac{3}{3}})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 4.2.2

Rewrite the expression.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 8 (x^{6} + 27 x^{4} + 243 x^{2} + 729) x (3 {(x + 6)}^{1})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5

Simplify the numerator.

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Step 5.1

Apply the distributive property.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (8 x^{6} + 8 (27 x^{4}) + 8 (243 x^{2}) + 8 \cdot 729) x (3 {(x + 6)}^{1})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.2

Simplify.

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Step 5.2.1

Multiply $27$ by $8$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (8 x^{6} + 216 x^{4} + 8 (243 x^{2}) + 8 \cdot 729) x (3 {(x + 6)}^{1})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.2.2

Multiply $243$ by $8$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (8 x^{6} + 216 x^{4} + 1944 x^{2} + 8 \cdot 729) x (3 {(x + 6)}^{1})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.2.3

Multiply $8$ by $729$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (8 x^{6} + 216 x^{4} + 1944 x^{2} + 5832) x (3 {(x + 6)}^{1})}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.3

Rewrite using the commutative property of multiplication.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 3 (8 x^{6} + 216 x^{4} + 1944 x^{2} + 5832) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.4

Apply the distributive property.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (3 (8 x^{6}) + 3 (216 x^{4}) + 3 (1944 x^{2}) + 3 \cdot 5832) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.5

Simplify.

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Step 5.5.1

Multiply $8$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{6} + 3 (216 x^{4}) + 3 (1944 x^{2}) + 3 \cdot 5832) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.5.2

Multiply $216$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{6} + 648 x^{4} + 3 (1944 x^{2}) + 3 \cdot 5832) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.5.3

Multiply $1944$ by $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{6} + 648 x^{4} + 5832 x^{2} + 3 \cdot 5832) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.5.4

Multiply $3$ by $5832$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{6} + 648 x^{4} + 5832 x^{2} + 17496) x {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.6

Apply the distributive property.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{6} x + 648 x^{4} x + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7

Simplify.

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Step 5.7.1

Multiply $x^{6}$ by $x$ by adding the exponents.

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Step 5.7.1.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 (x \cdot x^{6}) + 648 x^{4} x + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.1.2

Multiply $x$ by $x^{6}$ .

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Step 5.7.1.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 (x^{1} x^{6}) + 648 x^{4} x + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.1.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{1 + 6} + 648 x^{4} x + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.1.3

Add $1$ and $6$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{4} x + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.2

Multiply $x^{4}$ by $x$ by adding the exponents.

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Step 5.7.2.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 (x \cdot x^{4}) + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.2.2

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

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Step 5.7.2.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 (x^{1} x^{4}) + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.2.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{1 + 4} + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.2.3

Add $1$ and $4$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 x^{2} x + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.3

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

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Step 5.7.3.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 (x \cdot x^{2}) + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.3.2

Multiply $x$ by $x^{2}$ .

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Step 5.7.3.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 (x^{1} x^{2}) + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.3.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 x^{1 + 2} + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.7.3.3

Add $1$ and $2$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 x^{3} + 17496 x) {(x + 6)}^{1}}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.8

Simplify.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + (24 x^{7} + 648 x^{5} + 5832 x^{3} + 17496 x) (x + 6)}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.9

Expand $(24 x^{7} + 648 x^{5} + 5832 x^{3} + 17496 x) (x + 6)$ by multiplying each term in the first expression by each term in the second expression.

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{7} x + 24 x^{7} \cdot 6 + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10

Simplify each term.

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Step 5.10.1

Multiply $x^{7}$ by $x$ by adding the exponents.

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Step 5.10.1.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 (x \cdot x^{7}) + 24 x^{7} \cdot 6 + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.1.2

Multiply $x$ by $x^{7}$ .

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Step 5.10.1.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 (x^{1} x^{7}) + 24 x^{7} \cdot 6 + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.1.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{1 + 7} + 24 x^{7} \cdot 6 + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.1.3

Add $1$ and $7$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 24 x^{7} \cdot 6 + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.2

Multiply $6$ by $24$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{5} x + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.3

Multiply $x^{5}$ by $x$ by adding the exponents.

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Step 5.10.3.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 (x \cdot x^{5}) + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.3.2

Multiply $x$ by $x^{5}$ .

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Step 5.10.3.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 (x^{1} x^{5}) + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.3.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{1 + 5} + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.3.3

Add $1$ and $5$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 648 x^{5} \cdot 6 + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.4

Multiply $6$ by $648$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{3} x + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.5

Multiply $x^{3}$ by $x$ by adding the exponents.

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Step 5.10.5.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 (x \cdot x^{3}) + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.5.2

Multiply $x$ by $x^{3}$ .

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Step 5.10.5.2.1

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 (x^{1} x^{3}) + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.5.2.2

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

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{1 + 3} + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.5.3

Add $1$ and $3$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 5832 x^{3} \cdot 6 + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.6

Multiply $6$ by $5832$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 x \cdot x + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.7

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

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Step 5.10.7.1

Move $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 (x \cdot x) + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.7.2

Multiply $x$ by $x$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 x^{2} + 17496 x \cdot 6}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.10.8

Multiply $6$ by $17496$ .

$\frac{- x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 24 x^{8} + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 x^{2} + 104976 x}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.11

Add $- x^{8}$ and $24 x^{8}$ .

$\frac{23 x^{8} - 36 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 144 x^{7} + 648 x^{6} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 x^{2} + 104976 x}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.12

Add $- 36 x^{6}$ and $648 x^{6}$ .

$\frac{23 x^{8} + 612 x^{6} - 486 x^{4} - 2916 x^{2} - 6561 + 144 x^{7} + 3888 x^{5} + 5832 x^{4} + 34992 x^{3} + 17496 x^{2} + 104976 x}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.13

Add $- 486 x^{4}$ and $5832 x^{4}$ .

$\frac{23 x^{8} + 612 x^{6} + 5346 x^{4} - 2916 x^{2} - 6561 + 144 x^{7} + 3888 x^{5} + 34992 x^{3} + 17496 x^{2} + 104976 x}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.14

Add $- 2916 x^{2}$ and $17496 x^{2}$ .

$\frac{23 x^{8} + 612 x^{6} + 5346 x^{4} - 6561 + 144 x^{7} + 3888 x^{5} + 34992 x^{3} + 14580 x^{2} + 104976 x}{3 {(x + 6)}^{\frac{4}{3}}}$

Step 5.15

Reorder terms.

$\frac{23 x^{8} + 144 x^{7} + 612 x^{6} + 3888 x^{5} + 5346 x^{4} + 34992 x^{3} + 14580 x^{2} + 104976 x - 6561}{3 {(x + 6)}^{\frac{4}{3}}}$